231169670387 has 2 divisors, whose sum is σ = 231169670388. Its totient is φ = 231169670386.

The previous prime is 231169670377. The next prime is 231169670393. The reversal of 231169670387 is 783076961132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231169670387 - 2⁶ = 231169670323 is a prime.

It is not a weakly prime, because it can be changed into another prime (231169670377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115584835193 + 115584835194.

It is an arithmetic number, because the mean of its divisors is an integer number (115584835194).

Almost surely, 2^231169670387 is an apocalyptic number.

231169670387 is a deficient number, since it is larger than the sum of its proper divisors (1).

231169670387 is an equidigital number, since it uses as much as digits as its factorization.

231169670387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 231169670387 in words is "two hundred thirty-one billion, one hundred sixty-nine million, six hundred seventy thousand, three hundred eighty-seven".