231999323 has 8 divisors (see below), whose sum is σ = 248080320. Its totient is φ = 216188800.

The previous prime is 231999307. The next prime is 231999331. The reversal of 231999323 is 323999132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231999323 - 2⁴ = 231999307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231999023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65843 + ... + 69276.

It is an arithmetic number, because the mean of its divisors is an integer number (31010040).

Almost surely, 2^231999323 is an apocalyptic number.

231999323 is a deficient number, since it is larger than the sum of its proper divisors (16080997).

231999323 is a wasteful number, since it uses less digits than its factorization.

231999323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135237.

The product of its digits is 78732, while the sum is 41.

The square root of 231999323 is about 15231.5239880978. The cubic root of 231999323 is about 614.4627674474.

The spelling of 231999323 in words is "two hundred thirty-one million, nine hundred ninety-nine thousand, three hundred twenty-three".