31112003313 has 32 divisors (see below), whose sum is σ = 46366214400. Its totient is φ = 20618236800.

The previous prime is 31112003311. The next prime is 31112003413. The reversal of 31112003313 is 31330021113.

It is a happy number.

31112003313 is a `hidden beast` number, since 311 + 1 + 20 + 0 + 331 + 3 = 666.

It is not a de Polignac number, because 31112003313 - 2¹ = 31112003311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31112003311) 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, 3326023 + ... + 3335363.

It is an arithmetic number, because the mean of its divisors is an integer number (1448944200).

Almost surely, 2^31112003313 is an apocalyptic number.

It is an amenable number.

31112003313 is a deficient number, since it is larger than the sum of its proper divisors (15254211087).

31112003313 is a wasteful number, since it uses less digits than its factorization.

31112003313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10070 (or 10064 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31112003313 its reverse (31330021113), we get a palindrome (62442024426).

The spelling of 31112003313 in words is "thirty-one billion, one hundred twelve million, three thousand, three hundred thirteen".