31144123024 has 20 divisors (see below), whose sum is σ = 68961986944. Its totient is φ = 13347481248.

The previous prime is 31144123013. The next prime is 31144123051. The reversal of 31144123024 is 42032144113.

It is a self number, because there is not a number n which added to its sum of digits gives 31144123024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139036152 + ... + 139036375.

Almost surely, 2^31144123024 is an apocalyptic number.

It is an amenable number.

31144123024 is an abundant number, since it is smaller than the sum of its proper divisors (37817863920).

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

31144123024 is a wasteful number, since it uses less digits than its factorization.

31144123024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278072542 (or 278072536 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31144123024 its reverse (42032144113), we get a palindrome (73176267137).

The spelling of 31144123024 in words is "thirty-one billion, one hundred forty-four million, one hundred twenty-three thousand, twenty-four".