31013313001 has 4 divisors (see below), whose sum is σ = 33832705104. Its totient is φ = 28193920900.

The previous prime is 31013312977. The next prime is 31013313017. The reversal of 31013313001 is 10031331013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31013313001 - 2⁵ = 31013312969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31013313301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409696035 + ... + 1409696056.

It is an arithmetic number, because the mean of its divisors is an integer number (8458176276).

Almost surely, 2^31013313001 is an apocalyptic number.

It is an amenable number.

31013313001 is a deficient number, since it is larger than the sum of its proper divisors (2819392103).

31013313001 is a wasteful number, since it uses less digits than its factorization.

31013313001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819392102.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 31013313001 its reverse (10031331013), we get a palindrome (41044644014).

The spelling of 31013313001 in words is "thirty-one billion, thirteen million, three hundred thirteen thousand, one".