230331011021 has 4 divisors (see below), whose sum is σ = 230332212000. Its totient is φ = 230329810044.

The previous prime is 230331010999. The next prime is 230331011077. The reversal of 230331011021 is 120110133032.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 230331011021 - 2⁶ = 230331010957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230331011621) 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, 241121 + ... + 720278.

It is an arithmetic number, because the mean of its divisors is an integer number (57583053000).

Almost surely, 2^230331011021 is an apocalyptic number.

It is an amenable number.

230331011021 is a deficient number, since it is larger than the sum of its proper divisors (1200979).

230331011021 is an equidigital number, since it uses as much as digits as its factorization.

230331011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200978.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 230331011021 its reverse (120110133032), we get a palindrome (350441144053).

The spelling of 230331011021 in words is "two hundred thirty billion, three hundred thirty-one million, eleven thousand, twenty-one".