31312034113430 has 32 divisors (see below), whose sum is σ = 64465995792384. Its totient is φ = 10726776474336.

The previous prime is 31312034113363. The next prime is 31312034113457. The reversal of 31312034113430 is 3431143021313.

It is a super-2 number, since 2×31312034113430² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31312034113393 and 31312034113402.

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, 182790422 + ... + 182961641.

It is an arithmetic number, because the mean of its divisors is an integer number (2014562368512).

Almost surely, 2^{31312034113430} is an apocalyptic number.

31312034113430 is an abundant number, since it is smaller than the sum of its proper divisors (33153961678954).

31312034113430 is a wasteful number, since it uses less digits than its factorization.

31312034113430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365753300.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 31312034113430 its reverse (3431143021313), we get a palindrome (34743177134743).

The spelling of 31312034113430 in words is "thirty-one trillion, three hundred twelve billion, thirty-four million, one hundred thirteen thousand, four hundred thirty".