31124233432 has 32 divisors (see below), whose sum is σ = 59049151200. Its totient is φ = 15378004224.

The previous prime is 31124233429. The next prime is 31124233447. The reversal of 31124233432 is 23433242113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31124233432.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1257238 + ... + 1281754.

It is an arithmetic number, because the mean of its divisors is an integer number (1845285975).

Almost surely, 2^31124233432 is an apocalyptic number.

It is an amenable number.

31124233432 is a deficient number, since it is larger than the sum of its proper divisors (27924917768).

31124233432 is a wasteful number, since it uses less digits than its factorization.

31124233432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26395 (or 26391 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

Adding to 31124233432 its reverse (23433242113), we get a palindrome (54557475545).

The spelling of 31124233432 in words is "thirty-one billion, one hundred twenty-four million, two hundred thirty-three thousand, four hundred thirty-two".