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131420102431023 = 3472370487142969
BaseRepresentation
bin11101111000011010100000…
…100001011001000100101111
3122020022122020220021101110000
4131320122200201121010233
5114211141332210243043
61143301321145315343
736452534436204240
oct3570324041310457
9566278226241400
10131420102431023
1138968a5278647a
12128a611a495b53
135843b29b4bb53
142464aa4514cc7
15102d8124592d3
hex7786a085912f

131420102431023 has 80 divisors (see below), whose sum is σ = 234124414571520. Its totient is φ = 71830584169344.

The previous prime is 131420102431001. The next prime is 131420102431031. The reversal of 131420102431023 is 320134201024131.

131420102431023 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 201 + 0 + 2 + 431 + 0 + 23 = 666.

It is not a de Polignac number, because 131420102431023 - 26 = 131420102430959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131420102431523) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 919149483 + ... + 919292451.

It is an arithmetic number, because the mean of its divisors is an integer number (2926555182144).

Almost surely, 2131420102431023 is an apocalyptic number.

131420102431023 is a deficient number, since it is larger than the sum of its proper divisors (102704312140497).

131420102431023 is a wasteful number, since it uses less digits than its factorization.

131420102431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213498 (or 213489 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131420102431023 its reverse (320134201024131), we get a palindrome (451554303455154).

The spelling of 131420102431023 in words is "one hundred thirty-one trillion, four hundred twenty billion, one hundred two million, four hundred thirty-one thousand, twenty-three".

Divisors: 1 3 7 9 21 23 27 63 69 81 161 189 207 483 567 621 1449 1863 4347 13041 70487 142969 211461 428907 493409 634383 1000783 1286721 1480227 1621201 1903149 3002349 3288287 3860163 4440681 4863603 5709447 9007047 9864861 11348407 11580489 13322043 14590809 23018009 27021141 29594583 34045221 39966129 43772427 69054027 81063423 88783749 102135663 131317281 207162081 266351247 306406989 621486243 919220967 1864458729 10077455903 30232367709 70542191321 90697103127 211626573963 231781485769 272091309381 634879721889 695344457307 816273928143 1622470400383 1904639165667 2086033371921 4867411201149 5713917497001 6258100115763 14602233603447 18774300347289 43806700810341 131420102431023