31012432104 has 32 divisors (see below), whose sum is σ = 82091733120. Its totient is φ = 9729390336.

The previous prime is 31012432097. The next prime is 31012432181. The reversal of 31012432104 is 40123421013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38005024 + ... + 38005839.

It is an arithmetic number, because the mean of its divisors is an integer number (2565366660).

Almost surely, 2^31012432104 is an apocalyptic number.

31012432104 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31012432104 is an abundant number, since it is smaller than the sum of its proper divisors (51079301016).

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

31012432104 is a wasteful number, since it uses less digits than its factorization.

31012432104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76010889 (or 76010885 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31012432104 its reverse (40123421013), we get a palindrome (71135853117).

The spelling of 31012432104 in words is "thirty-one billion, twelve million, four hundred thirty-two thousand, one hundred four".