231230302331 has 8 divisors (see below), whose sum is σ = 267447097344. Its totient is φ = 195809481000.

The previous prime is 231230302301. The next prime is 231230302333. The reversal of 231230302331 is 133203032132.

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

It is not a de Polignac number, because 231230302331 - 2³⁰ = 230156560507 is a prime.

It is a super-2 number, since 2×231230302331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231230302297 and 231230302306.

It is not an unprimeable number, because it can be changed into a prime (231230302333) 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, 198992795 + ... + 198993956.

It is an arithmetic number, because the mean of its divisors is an integer number (33430887168).

Almost surely, 2^231230302331 is an apocalyptic number.

231230302331 is a deficient number, since it is larger than the sum of its proper divisors (36216795013).

231230302331 is an equidigital number, since it uses as much as digits as its factorization.

231230302331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397986841.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231230302331 its reverse (133203032132), we get a palindrome (364433334463).

The spelling of 231230302331 in words is "two hundred thirty-one billion, two hundred thirty million, three hundred two thousand, three hundred thirty-one".