2131322031131 has 2 divisors, whose sum is σ = 2131322031132. Its totient is φ = 2131322031130.

The previous prime is 2131322031121. The next prime is 2131322031151. The reversal of 2131322031131 is 1311302231312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131322031131 - 2¹⁴ = 2131322014747 is a prime.

It is a super-2 number, since 2×2131322031131² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131322031097 and 2131322031106.

It is not a weakly prime, because it can be changed into another prime (2131322031121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065661015565 + 1065661015566.

It is an arithmetic number, because the mean of its divisors is an integer number (1065661015566).

Almost surely, 2^{2131322031131} is an apocalyptic number.

2131322031131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131322031131 is an equidigital number, since it uses as much as digits as its factorization.

2131322031131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2131322031131 its reverse (1311302231312), we get a palindrome (3442624262443).

The spelling of 2131322031131 in words is "two trillion, one hundred thirty-one billion, three hundred twenty-two million, thirty-one thousand, one hundred thirty-one".