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101131210131031 = 3122959812381849
BaseRepresentation
bin10110111111101001110001…
…110110110000011001010111
3111021002001022220202020002101
4112333221301312300121113
5101223413204243143111
6555031011521422531
730205326443460403
oct2677516166603127
9437061286666071
10101131210131031
112a2505616a7593
12b413aa579aa47
13445782ac16b72
141ad8ac3330103
15ba59c5236bc1
hex5bfa71db0657

101131210131031 has 16 divisors (see below), whose sum is σ = 104866948512000. Its totient is φ = 97425205113600.

The previous prime is 101131210130887. The next prime is 101131210131131. The reversal of 101131210131031 is 130131012131101.

It is a cyclic number.

It is not a de Polignac number, because 101131210131031 - 231 = 101129062647383 is a prime.

It is a super-2 number, since 2×1011312101310312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101131210131131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41268195 + ... + 43650043.

It is an arithmetic number, because the mean of its divisors is an integer number (6554184282000).

Almost surely, 2101131210131031 is an apocalyptic number.

101131210131031 is a deficient number, since it is larger than the sum of its proper divisors (3735738380969).

101131210131031 is a wasteful number, since it uses less digits than its factorization.

101131210131031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388090.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 101131210131031 its reverse (130131012131101), we get a palindrome (231262222262132).

The spelling of 101131210131031 in words is "one hundred one trillion, one hundred thirty-one billion, two hundred ten million, one hundred thirty-one thousand, thirty-one".

Divisors: 1 31 229 5981 7099 185411 1369649 2381849 42459119 73837319 545443421 14245838869 16908746051 441621004939 3262297101001 101131210131031