117137123557 has 2 divisors, whose sum is σ = 117137123558. Its totient is φ = 117137123556.

The previous prime is 117137123507. The next prime is 117137123603. The reversal of 117137123557 is 755321731711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111108222241 + 6028901316 = 333329^2 + 77646^2 .

It is a cyclic number.

It is not a de Polignac number, because 117137123557 - 2⁷ = 117137123429 is a prime.

It is a super-2 number, since 2×117137123557² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117137123507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58568561778 + 58568561779.

It is an arithmetic number, because the mean of its divisors is an integer number (58568561779).

Almost surely, 2^117137123557 is an apocalyptic number.

It is an amenable number.

117137123557 is a deficient number, since it is larger than the sum of its proper divisors (1).

117137123557 is an equidigital number, since it uses as much as digits as its factorization.

117137123557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 154350, while the sum is 43.

The spelling of 117137123557 in words is "one hundred seventeen billion, one hundred thirty-seven million, one hundred twenty-three thousand, five hundred fifty-seven".