231990852259 has 2 divisors, whose sum is σ = 231990852260. Its totient is φ = 231990852258.

The previous prime is 231990852227. The next prime is 231990852263. The reversal of 231990852259 is 952258099132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231990852259 - 2⁵ = 231990852227 is a prime.

It is not a weakly prime, because it can be changed into another prime (231990852659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115995426129 + 115995426130.

It is an arithmetic number, because the mean of its divisors is an integer number (115995426130).

Almost surely, 2^231990852259 is an apocalyptic number.

231990852259 is a deficient number, since it is larger than the sum of its proper divisors (1).

231990852259 is an equidigital number, since it uses as much as digits as its factorization.

231990852259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 231990852259 in words is "two hundred thirty-one billion, nine hundred ninety million, eight hundred fifty-two thousand, two hundred fifty-nine".