2013131031943 has 2 divisors, whose sum is σ = 2013131031944. Its totient is φ = 2013131031942.

The previous prime is 2013131031937. The next prime is 2013131032037. The reversal of 2013131031943 is 3491301313102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2013131031943 - 2⁵ = 2013131031911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013131035943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006565515971 + 1006565515972.

It is an arithmetic number, because the mean of its divisors is an integer number (1006565515972).

Almost surely, 2^{2013131031943} is an apocalyptic number.

2013131031943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013131031943 is an equidigital number, since it uses as much as digits as its factorization.

2013131031943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 2013131031943 in words is "two trillion, thirteen billion, one hundred thirty-one million, thirty-one thousand, nine hundred forty-three".