231230323321 has 4 divisors (see below), whose sum is σ = 231399476352. Its totient is φ = 231061170292.

The previous prime is 231230323283. The next prime is 231230323339. The reversal of 231230323321 is 123323032132.

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 not a de Polignac number, because 231230323321 - 2²⁷ = 231096105593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231230323351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84574465 + ... + 84577198.

It is an arithmetic number, because the mean of its divisors is an integer number (57849869088).

Almost surely, 2^231230323321 is an apocalyptic number.

It is an amenable number.

231230323321 is a deficient number, since it is larger than the sum of its proper divisors (169153031).

231230323321 is a wasteful number, since it uses less digits than its factorization.

231230323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169153030.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 231230323321 its reverse (123323032132), we get a palindrome (354553355453).

The spelling of 231230323321 in words is "two hundred thirty-one billion, two hundred thirty million, three hundred twenty-three thousand, three hundred twenty-one".