2001131031313 has 16 divisors (see below), whose sum is σ = 2078775342720. Its totient is φ = 1925348790400.

The previous prime is 2001131031301. The next prime is 2001131031329. The reversal of 2001131031313 is 3131301311002.

It is a cyclic number.

It is not a de Polignac number, because 2001131031313 - 2²⁹ = 2000594160401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001131031373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1169578 + ... + 2317363.

It is an arithmetic number, because the mean of its divisors is an integer number (129923458920).

Almost surely, 2^{2001131031313} is an apocalyptic number.

It is an amenable number.

2001131031313 is a deficient number, since it is larger than the sum of its proper divisors (77644311407).

2001131031313 is a wasteful number, since it uses less digits than its factorization.

2001131031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487208.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 2001131031313 its reverse (3131301311002), we get a palindrome (5132432342315).

The spelling of 2001131031313 in words is "two trillion, one billion, one hundred thirty-one million, thirty-one thousand, three hundred thirteen".