123231104013 has 32 divisors (see below), whose sum is σ = 167583024000. Its totient is φ = 80526643200.

The previous prime is 123231103987. The next prime is 123231104111. The reversal of 123231104013 is 310401132321.

It is not a de Polignac number, because 123231104013 - 2¹⁸ = 123230841869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231304013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117474313 + ... + 117475361.

It is an arithmetic number, because the mean of its divisors is an integer number (5236969500).

Almost surely, 2^123231104013 is an apocalyptic number.

It is an amenable number.

123231104013 is a deficient number, since it is larger than the sum of its proper divisors (44351919987).

123231104013 is a wasteful number, since it uses less digits than its factorization.

123231104013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123231104013 its reverse (310401132321), we get a palindrome (433632236334).

The spelling of 123231104013 in words is "one hundred twenty-three billion, two hundred thirty-one million, one hundred four thousand, thirteen".