31013200001 has 12 divisors (see below), whose sum is σ = 36757272852. Its totient is φ = 26081179488.

The previous prime is 31013199991. The next prime is 31013200027. The reversal of 31013200001 is 10000231013.

It can be written as a sum of positive squares in 2 ways, for example, as 17076216976 + 13936983025 = 130676^2 + 118055^2 .

It is not a de Polignac number, because 31013200001 - 2⁶ = 31013199937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31013200201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5968370 + ... + 5973563.

It is an arithmetic number, because the mean of its divisors is an integer number (3063106071).

Almost surely, 2^31013200001 is an apocalyptic number.

It is an amenable number.

31013200001 is a deficient number, since it is larger than the sum of its proper divisors (5744072851).

31013200001 is a wasteful number, since it uses less digits than its factorization.

31013200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11942000 (or 11941993 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 31013200001 its reverse (10000231013), we get a palindrome (41013431014).

The spelling of 31013200001 in words is "thirty-one billion, thirteen million, two hundred thousand, one".