31153424432 has 20 divisors (see below), whose sum is σ = 65002818720. Its totient is φ = 14378503488.

The previous prime is 31153424413. The next prime is 31153424441. The reversal of 31153424432 is 23442435113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74887832 + ... + 74888247.

It is an arithmetic number, because the mean of its divisors is an integer number (3250140936).

Almost surely, 2^31153424432 is an apocalyptic number.

It is an amenable number.

31153424432 is an abundant number, since it is smaller than the sum of its proper divisors (33849394288).

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

31153424432 is a wasteful number, since it uses less digits than its factorization.

31153424432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149776100 (or 149776094 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

Adding to 31153424432 its reverse (23442435113), we get a palindrome (54595859545).

The spelling of 31153424432 in words is "thirty-one billion, one hundred fifty-three million, four hundred twenty-four thousand, four hundred thirty-two".