231023099 has 2 divisors, whose sum is σ = 231023100. Its totient is φ = 231023098.

The previous prime is 231023087. The next prime is 231023101. The reversal of 231023099 is 990320132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231023099 - 2⁴ = 231023083 is a prime.

Together with 231023101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231023059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115511549 + 115511550.

It is an arithmetic number, because the mean of its divisors is an integer number (115511550).

Almost surely, 2^231023099 is an apocalyptic number.

231023099 is a deficient number, since it is larger than the sum of its proper divisors (1).

231023099 is an equidigital number, since it uses as much as digits as its factorization.

231023099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 231023099 is about 15199.4440358850. Note that the first 3 decimals coincide. The cubic root of 231023099 is about 613.5996950406.

The spelling of 231023099 in words is "two hundred thirty-one million, twenty-three thousand, ninety-nine".