231243059 has 2 divisors, whose sum is σ = 231243060. Its totient is φ = 231243058.

The previous prime is 231243017. The next prime is 231243079. The reversal of 231243059 is 950342132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231243059 - 2¹² = 231238963 is a prime.

It is not a weakly prime, because it can be changed into another prime (231243079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115621529 + 115621530.

It is an arithmetic number, because the mean of its divisors is an integer number (115621530).

Almost surely, 2^231243059 is an apocalyptic number.

231243059 is a deficient number, since it is larger than the sum of its proper divisors (1).

231243059 is an equidigital number, since it uses as much as digits as its factorization.

231243059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 231243059 is about 15206.6781053588. The cubic root of 231243059 is about 613.7943719328.

The spelling of 231243059 in words is "two hundred thirty-one million, two hundred forty-three thousand, fifty-nine".