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20130144101231 = 73656342016669
BaseRepresentation
bin1001001001110111010100…
…00101101010001101101111
32122021102102100112212000012
410210323222011222031233
510114303013342214411
6110451354401523435
74145232510440303
oct444735205521557
978242370485005
1020130144101231
11646116760a59a
12231143464357b
13b30358ca0568
144d8438917d03
1524d9706b118b
hex124eea16a36f

20130144101231 has 8 divisors (see below), whose sum is σ = 20409009219120. Its totient is φ = 19851363029952.

The previous prime is 20130144101213. The next prime is 20130144101233. The reversal of 20130144101231 is 13210144103102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20130144101231 is a prime.

It is a super-2 number, since 2×201301441012312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20130144101197 and 20130144101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130144101233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20529236 + ... + 21487433.

It is an arithmetic number, because the mean of its divisors is an integer number (2551126152390).

Almost surely, 220130144101231 is an apocalyptic number.

20130144101231 is a deficient number, since it is larger than the sum of its proper divisors (278865117889).

20130144101231 is an equidigital number, since it uses as much as digits as its factorization.

20130144101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42023305.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20130144101231 its reverse (13210144103102), we get a palindrome (33340288204333).

The spelling of 20130144101231 in words is "twenty trillion, one hundred thirty billion, one hundred forty-four million, one hundred one thousand, two hundred thirty-one".

Divisors: 1 73 6563 479099 42016669 3067216837 275755398647 20130144101231