230311332231 has 4 divisors (see below), whose sum is σ = 307081776312. Its totient is φ = 153540888152.

The previous prime is 230311332187. The next prime is 230311332253. The reversal of 230311332231 is 132233113032.

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

It is a cyclic number.

It is not a de Polignac number, because 230311332231 - 2²⁵ = 230277777799 is a prime.

It is a super-2 number, since 2×230311332231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230311332931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38385222036 + ... + 38385222041.

It is an arithmetic number, because the mean of its divisors is an integer number (76770444078).

Almost surely, 2^230311332231 is an apocalyptic number.

230311332231 is a deficient number, since it is larger than the sum of its proper divisors (76770444081).

230311332231 is an equidigital number, since it uses as much as digits as its factorization.

230311332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76770444080.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 230311332231 its reverse (132233113032), we get a palindrome (362544445263).

The spelling of 230311332231 in words is "two hundred thirty billion, three hundred eleven million, three hundred thirty-two thousand, two hundred thirty-one".