123131230000013 has 8 divisors (see below), whose sum is σ = 130402444751808. Its totient is φ = 116019822165984.

The previous prime is 123131229999991. The next prime is 123131230000019. The reversal of 123131230000013 is 310000032131321.

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

It is a cyclic number.

It is not a de Polignac number, because 123131230000013 - 2²⁸ = 123130961564557 is a prime.

It is a super-2 number, since 2×123131230000013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123131230000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131230000019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39951727856 + ... + 39951730937.

It is an arithmetic number, because the mean of its divisors is an integer number (16300305593976).

Almost surely, 2^{123131230000013} is an apocalyptic number.

It is an amenable number.

123131230000013 is a deficient number, since it is larger than the sum of its proper divisors (7271214751795).

123131230000013 is an equidigital number, since it uses as much as digits as its factorization.

123131230000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79903458883.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123131230000013 its reverse (310000032131321), we get a palindrome (433131262131334).

The spelling of 123131230000013 in words is "one hundred twenty-three trillion, one hundred thirty-one billion, two hundred thirty million, thirteen", and thus it is an aban number.