31124232104 has 16 divisors (see below), whose sum is σ = 66694783200. Its totient is φ = 13338956592.

The previous prime is 31124232071. The next prime is 31124232149. The reversal of 31124232104 is 40123242113.

It is a self number, because there is not a number n which added to its sum of digits gives 31124232104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277894874 + ... + 277894985.

It is an arithmetic number, because the mean of its divisors is an integer number (4168423950).

Almost surely, 2^31124232104 is an apocalyptic number.

It is an amenable number.

31124232104 is an abundant number, since it is smaller than the sum of its proper divisors (35570551096).

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

31124232104 is a wasteful number, since it uses less digits than its factorization.

31124232104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555789872 (or 555789868 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31124232104 its reverse (40123242113), we get a palindrome (71247474217).

The spelling of 31124232104 in words is "thirty-one billion, one hundred twenty-four million, two hundred thirty-two thousand, one hundred four".