230231021321 has 4 divisors (see below), whose sum is σ = 263121167232. Its totient is φ = 197340875412.

The previous prime is 230231021297. The next prime is 230231021323. The reversal of 230231021321 is 123120132032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230231021321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230231021293 and 230231021302.

It is not an unprimeable number, because it can be changed into a prime (230231021323) 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, 16445072945 + ... + 16445072958.

It is an arithmetic number, because the mean of its divisors is an integer number (65780291808).

Almost surely, 2^230231021321 is an apocalyptic number.

It is an amenable number.

230231021321 is a deficient number, since it is larger than the sum of its proper divisors (32890145911).

230231021321 is an equidigital number, since it uses as much as digits as its factorization.

230231021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32890145910.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 230231021321 its reverse (123120132032), we get a palindrome (353351153353).

The spelling of 230231021321 in words is "two hundred thirty billion, two hundred thirty-one million, twenty-one thousand, three hundred twenty-one".