2131117057 has 2 divisors, whose sum is σ = 2131117058. Its totient is φ = 2131117056.

The previous prime is 2131117033. The next prime is 2131117081. The reversal of 2131117057 is 7507111312.

It is a balanced prime because it is at equal distance from previous prime (2131117033) and next prime (2131117081).

It can be written as a sum of positive squares in only one way, i.e., 1730476801 + 400640256 = 41599^2 + 20016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131117057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2131111057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065558528 + 1065558529.

It is an arithmetic number, because the mean of its divisors is an integer number (1065558529).

Almost surely, 2^2131117057 is an apocalyptic number.

It is an amenable number.

2131117057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131117057 is an equidigital number, since it uses as much as digits as its factorization.

2131117057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 2131117057 is about 46164.0234056781. The cubic root of 2131117057 is about 1286.8732351625.

Adding to 2131117057 its reverse (7507111312), we get a palindrome (9638228369).

The spelling of 2131117057 in words is "two billion, one hundred thirty-one million, one hundred seventeen thousand, fifty-seven".