2131330202957 has 2 divisors, whose sum is σ = 2131330202958. Its totient is φ = 2131330202956.

The previous prime is 2131330202951. The next prime is 2131330203001. The reversal of 2131330202957 is 7592020331312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2115378260356 + 15951942601 = 1454434^2 + 126301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131330202957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2131330202957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131330202951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065665101478 + 1065665101479.

It is an arithmetic number, because the mean of its divisors is an integer number (1065665101479).

Almost surely, 2^{2131330202957} is an apocalyptic number.

It is an amenable number.

2131330202957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131330202957 is an equidigital number, since it uses as much as digits as its factorization.

2131330202957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 2131330202957 in words is "two trillion, one hundred thirty-one billion, three hundred thirty million, two hundred two thousand, nine hundred fifty-seven".