117431642513 has 2 divisors, whose sum is σ = 117431642514. Its totient is φ = 117431642512.

The previous prime is 117431642467. The next prime is 117431642539. The reversal of 117431642513 is 315246134711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108473398609 + 8958243904 = 329353^2 + 94648^2 .

It is a cyclic number.

It is not a de Polignac number, because 117431642513 - 2¹⁴ = 117431626129 is a prime.

It is not a weakly prime, because it can be changed into another prime (117431642563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58715821256 + 58715821257.

It is an arithmetic number, because the mean of its divisors is an integer number (58715821257).

Almost surely, 2^117431642513 is an apocalyptic number.

It is an amenable number.

117431642513 is a deficient number, since it is larger than the sum of its proper divisors (1).

117431642513 is an equidigital number, since it uses as much as digits as its factorization.

117431642513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The spelling of 117431642513 in words is "one hundred seventeen billion, four hundred thirty-one million, six hundred forty-two thousand, five hundred thirteen".