231023297 has 2 divisors, whose sum is σ = 231023298. Its totient is φ = 231023296.

The previous prime is 231023249. The next prime is 231023341. The reversal of 231023297 is 792320132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147282496 + 83740801 = 12136^2 + 9151^2 .

It is a cyclic number.

It is not a de Polignac number, because 231023297 - 2⁸ = 231023041 is a prime.

It is not a weakly prime, because it can be changed into another prime (231023207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115511648 + 115511649.

It is an arithmetic number, because the mean of its divisors is an integer number (115511649).

Almost surely, 2^231023297 is an apocalyptic number.

It is an amenable number.

231023297 is a deficient number, since it is larger than the sum of its proper divisors (1).

231023297 is an equidigital number, since it uses as much as digits as its factorization.

231023297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 231023297 is about 15199.4505492797. The cubic root of 231023297 is about 613.5998703372.

The spelling of 231023297 in words is "two hundred thirty-one million, twenty-three thousand, two hundred ninety-seven".