2131330100117 has 2 divisors, whose sum is σ = 2131330100118. Its totient is φ = 2131330100116.

The previous prime is 2131330100101. The next prime is 2131330100261. The reversal of 2131330100117 is 7110010331312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1983573659236 + 147756440881 = 1408394^2 + 384391^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131330100117 - 2⁴ = 2131330100101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131330100092 and 2131330100101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131330100617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065665050058 + 1065665050059.

It is an arithmetic number, because the mean of its divisors is an integer number (1065665050059).

Almost surely, 2^{2131330100117} is an apocalyptic number.

It is an amenable number.

2131330100117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131330100117 is an equidigital number, since it uses as much as digits as its factorization.

2131330100117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

Adding to 2131330100117 its reverse (7110010331312), we get a palindrome (9241340431429).

The spelling of 2131330100117 in words is "two trillion, one hundred thirty-one billion, three hundred thirty million, one hundred thousand, one hundred seventeen".