31201004313 has 6 divisors (see below), whose sum is σ = 45068117354. Its totient is φ = 20800669536.

The previous prime is 31201004291. The next prime is 31201004321. The reversal of 31201004313 is 31340010213.

31201004313 is a `hidden beast` number, since 31 + 201 + 0 + 0 + 431 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31200629769 + 374544 = 176637^2 + 612^2 .

It is not a de Polignac number, because 31201004313 - 2²⁰ = 31199955737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31201008313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1733389120 + ... + 1733389137.

Almost surely, 2^31201004313 is an apocalyptic number.

It is an amenable number.

31201004313 is a deficient number, since it is larger than the sum of its proper divisors (13867113041).

31201004313 is a wasteful number, since it uses less digits than its factorization.

31201004313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466778263 (or 3466778260 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31201004313 its reverse (31340010213), we get a palindrome (62541014526).

The spelling of 31201004313 in words is "thirty-one billion, two hundred one million, four thousand, three hundred thirteen".