31013312001 has 32 divisors (see below), whose sum is σ = 49757952000. Its totient is φ = 16785014400.

The previous prime is 31013311999. The next prime is 31013312009. The reversal of 31013312001 is 10021331013.

It is not a de Polignac number, because 31013312001 - 2¹ = 31013311999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31013312009) 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, 2307900 + ... + 2321298.

It is an arithmetic number, because the mean of its divisors is an integer number (1554936000).

Almost surely, 2^31013312001 is an apocalyptic number.

It is an amenable number.

31013312001 is a deficient number, since it is larger than the sum of its proper divisors (18744639999).

31013312001 is a wasteful number, since it uses less digits than its factorization.

31013312001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19229.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31013312001 its reverse (10021331013), we get a palindrome (41034643014).

The spelling of 31013312001 in words is "thirty-one billion, thirteen million, three hundred twelve thousand, one".