117931531919143 has 2 divisors, whose sum is σ = 117931531919144. Its totient is φ = 117931531919142.

The previous prime is 117931531919119. The next prime is 117931531919161. The reversal of 117931531919143 is 341919135139711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117931531919143 - 2⁹ = 117931531918631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117931531719143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58965765959571 + 58965765959572.

It is an arithmetic number, because the mean of its divisors is an integer number (58965765959572).

Almost surely, 2^{117931531919143} is an apocalyptic number.

117931531919143 is a deficient number, since it is larger than the sum of its proper divisors (1).

117931531919143 is an equidigital number, since it uses as much as digits as its factorization.

117931531919143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2755620, while the sum is 58.

The spelling of 117931531919143 in words is "one hundred seventeen trillion, nine hundred thirty-one billion, five hundred thirty-one million, nine hundred nineteen thousand, one hundred forty-three".