31031013124 has 24 divisors (see below), whose sum is σ = 56236672800. Its totient is φ = 14972087424.

The previous prime is 31031013103. The next prime is 31031013131. The reversal of 31031013124 is 42131013013.

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, 1072549 + ... + 1101100.

It is an arithmetic number, because the mean of its divisors is an integer number (2343194700).

Almost surely, 2^31031013124 is an apocalyptic number.

It is an amenable number.

31031013124 is a deficient number, since it is larger than the sum of its proper divisors (25205659676).

31031013124 is a wasteful number, since it uses less digits than its factorization.

31031013124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173779 (or 2173777 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31031013124 its reverse (42131013013), we get a palindrome (73162026137).

The spelling of 31031013124 in words is "thirty-one billion, thirty-one million, thirteen thousand, one hundred twenty-four".