230072331 has 4 divisors (see below), whose sum is σ = 306763112. Its totient is φ = 153381552.

The previous prime is 230072309. The next prime is 230072333. The reversal of 230072331 is 133270032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 230072331 - 2⁵ = 230072299 is a prime.

It is a super-2 number, since 2×230072331² = 105866554983547122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230072298 and 230072307.

It is not an unprimeable number, because it can be changed into a prime (230072333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38345386 + ... + 38345391.

It is an arithmetic number, because the mean of its divisors is an integer number (76690778).

Almost surely, 2^230072331 is an apocalyptic number.

230072331 is a deficient number, since it is larger than the sum of its proper divisors (76690781).

230072331 is an equidigital number, since it uses as much as digits as its factorization.

230072331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76690780.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 230072331 is about 15168.1353830983. The cubic root of 230072331 is about 612.7567878436.

The spelling of 230072331 in words is "two hundred thirty million, seventy-two thousand, three hundred thirty-one".