2031310131031 has 2 divisors, whose sum is σ = 2031310131032. Its totient is φ = 2031310131030.

The previous prime is 2031310131023. The next prime is 2031310131043. The reversal of 2031310131031 is 1301310131302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2031310131031 - 2³ = 2031310131023 is a prime.

It is a super-2 number, since 2×2031310131031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031310131731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015655065515 + 1015655065516.

It is an arithmetic number, because the mean of its divisors is an integer number (1015655065516).

Almost surely, 2^{2031310131031} is an apocalyptic number.

2031310131031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031310131031 is an equidigital number, since it uses as much as digits as its factorization.

2031310131031 is an evil number, because the sum of its binary digits is even.

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

Adding to 2031310131031 its reverse (1301310131302), we get a palindrome (3332620262333).

The spelling of 2031310131031 in words is "two trillion, thirty-one billion, three hundred ten million, one hundred thirty-one thousand, thirty-one".