31368245031 has 32 divisors (see below), whose sum is σ = 46773648320. Its totient is φ = 20776476672.

The previous prime is 31368245021. The next prime is 31368245039. The reversal of 31368245031 is 13054286313.

It is not a de Polignac number, because 31368245031 - 2¹⁰ = 31368244007 is a prime.

It is a super-2 number, since 2×31368245031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368245039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4441455 + ... + 4448511.

It is an arithmetic number, because the mean of its divisors is an integer number (1461676510).

Almost surely, 2^31368245031 is an apocalyptic number.

31368245031 is a deficient number, since it is larger than the sum of its proper divisors (15405403289).

31368245031 is a wasteful number, since it uses less digits than its factorization.

31368245031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8112 (or 8106 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 31368245031 in words is "thirty-one billion, three hundred sixty-eight million, two hundred forty-five thousand, thirty-one".