123315033431135 has 64 divisors (see below), whose sum is σ = 182245020394752. Its totient is φ = 78003709157376.

The previous prime is 123315033431129. The next prime is 123315033431137. The reversal of 123315033431135 is 531134330513321.

It is a cyclic number.

It is not a de Polignac number, because 123315033431135 - 2⁸ = 123315033430879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123315033431137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6131100839 + ... + 6131120951.

It is an arithmetic number, because the mean of its divisors is an integer number (2847578443668).

Almost surely, 2^{123315033431135} is an apocalyptic number.

123315033431135 is a deficient number, since it is larger than the sum of its proper divisors (58929986963617).

123315033431135 is a wasteful number, since it uses less digits than its factorization.

123315033431135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28212.

The product of its (nonzero) digits is 145800, while the sum is 38.

Adding to 123315033431135 its reverse (531134330513321), we get a palindrome (654449363944456).

The spelling of 123315033431135 in words is "one hundred twenty-three trillion, three hundred fifteen billion, thirty-three million, four hundred thirty-one thousand, one hundred thirty-five".