31124042232 has 32 divisors (see below), whose sum is σ = 78906026880. Its totient is φ = 10228557920.

The previous prime is 31124042227. The next prime is 31124042251. The reversal of 31124042232 is 23224042113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9130938 + ... + 9134345.

It is an arithmetic number, because the mean of its divisors is an integer number (2465813340).

Almost surely, 2^31124042232 is an apocalyptic number.

It is an amenable number.

31124042232 is an abundant number, since it is smaller than the sum of its proper divisors (47781984648).

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

31124042232 is a wasteful number, since it uses less digits than its factorization.

31124042232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18265363 (or 18265359 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31124042232 its reverse (23224042113), we get a palindrome (54348084345).

The spelling of 31124042232 in words is "thirty-one billion, one hundred twenty-four million, forty-two thousand, two hundred thirty-two".