31113234 has 24 divisors (see below), whose sum is σ = 69909840. Its totient is φ = 10370916.

The previous prime is 31113223. The next prime is 31113253. The reversal of 31113234 is 43231113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31524 + ... + 32495.

It is an arithmetic number, because the mean of its divisors is an integer number (2912910).

Almost surely, 2^31113234 is an apocalyptic number.

31113234 is an abundant number, since it is smaller than the sum of its proper divisors (38796606).

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

31113234 is an equidigital number, since it uses as much as digits as its factorization.

31113234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64036 (or 64024 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 31113234 is about 5577.9238072960. The cubic root of 31113234 is about 314.5200855299.

Adding to 31113234 its reverse (43231113), we get a palindrome (74344347).

The spelling of 31113234 in words is "thirty-one million, one hundred thirteen thousand, two hundred thirty-four".