2131120331131 has 16 divisors (see below), whose sum is σ = 2371690630656. Its totient is φ = 1898589780000.

The previous prime is 2131120331083. The next prime is 2131120331147. The reversal of 2131120331131 is 1311330211312.

It is a cyclic number.

It is not a de Polignac number, because 2131120331131 - 2¹¹ = 2131120329083 is a prime.

It is a super-2 number, since 2×2131120331131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131120335131) 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, 5678005 + ... + 6041686.

It is an arithmetic number, because the mean of its divisors is an integer number (148230664416).

Almost surely, 2^{2131120331131} is an apocalyptic number.

2131120331131 is a deficient number, since it is larger than the sum of its proper divisors (240570299525).

2131120331131 is a wasteful number, since it uses less digits than its factorization.

2131120331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11720034.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 2131120331131 its reverse (1311330211312), we get a palindrome (3442450542443).

The spelling of 2131120331131 in words is "two trillion, one hundred thirty-one billion, one hundred twenty million, three hundred thirty-one thousand, one hundred thirty-one".