315123424431 has 16 divisors (see below), whose sum is σ = 430421088384. Its totient is φ = 205012630944.

The previous prime is 315123424403. The next prime is 315123424457. The reversal of 315123424431 is 134424321513.

It is not a de Polignac number, because 315123424431 - 2²⁷ = 314989206703 is a prime.

It is a super-2 number, since 2×315123424431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315123424392 and 315123424401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315123424481) 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 15 ways as a sum of consecutive naturals, for example, 7304560 + ... + 7347573.

It is an arithmetic number, because the mean of its divisors is an integer number (26901318024).

Almost surely, 2^315123424431 is an apocalyptic number.

315123424431 is a deficient number, since it is larger than the sum of its proper divisors (115297663953).

315123424431 is a wasteful number, since it uses less digits than its factorization.

315123424431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14652310.

The product of its digits is 34560, while the sum is 33.

Adding to 315123424431 its reverse (134424321513), we get a palindrome (449547745944).

The spelling of 315123424431 in words is "three hundred fifteen billion, one hundred twenty-three million, four hundred twenty-four thousand, four hundred thirty-one".