31337307145 has 48 divisors (see below), whose sum is σ = 41654943360. Its totient is φ = 22585483008.

The previous prime is 31337307101. The next prime is 31337307151. The reversal of 31337307145 is 54170373313.

It is not a de Polignac number, because 31337307145 - 2⁹ = 31337306633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7429077 + ... + 7433293.

It is an arithmetic number, because the mean of its divisors is an integer number (867811320).

Almost surely, 2^31337307145 is an apocalyptic number.

It is an amenable number.

31337307145 is a deficient number, since it is larger than the sum of its proper divisors (10317636215).

31337307145 is a wasteful number, since it uses less digits than its factorization.

31337307145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 4443 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 37.

The spelling of 31337307145 in words is "thirty-one billion, three hundred thirty-seven million, three hundred seven thousand, one hundred forty-five".