313131031422 has 32 divisors (see below), whose sum is σ = 683390736000. Its totient is φ = 94861002720.

The previous prime is 313131031391. The next prime is 313131031439. The reversal of 313131031422 is 224130131313.

It is a junction number, because it is equal to n+sod(n) for n = 313131031392 and 313131031401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447033 + ... + 908900.

It is an arithmetic number, because the mean of its divisors is an integer number (21355960500).

Almost surely, 2^313131031422 is an apocalyptic number.

313131031422 is an abundant number, since it is smaller than the sum of its proper divisors (370259704578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313131031422 is a wasteful number, since it uses less digits than its factorization.

313131031422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359448.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 313131031422 its reverse (224130131313), we get a palindrome (537261162735).

The spelling of 313131031422 in words is "three hundred thirteen billion, one hundred thirty-one million, thirty-one thousand, four hundred twenty-two".