2311021322131 has 2 divisors, whose sum is σ = 2311021322132. Its totient is φ = 2311021322130.

The previous prime is 2311021322111. The next prime is 2311021322149. The reversal of 2311021322131 is 1312231201132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2311021322131 - 2⁹ = 2311021321619 is a prime.

It is a super-2 number, since 2×2311021322131² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2311021322111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155510661065 + 1155510661066.

It is an arithmetic number, because the mean of its divisors is an integer number (1155510661066).

Almost surely, 2^{2311021322131} is an apocalyptic number.

2311021322131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311021322131 is an equidigital number, since it uses as much as digits as its factorization.

2311021322131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2311021322131 its reverse (1312231201132), we get a palindrome (3623252523263).

The spelling of 2311021322131 in words is "two trillion, three hundred eleven billion, twenty-one million, three hundred twenty-two thousand, one hundred thirty-one".