233312320321 has 4 divisors (see below), whose sum is σ = 243456334272. Its totient is φ = 223168306372.

The previous prime is 233312320301. The next prime is 233312320331. The reversal of 233312320321 is 123023213332.

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-233312320321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233312320301) 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, 5072006941 + ... + 5072006986.

It is an arithmetic number, because the mean of its divisors is an integer number (60864083568).

Almost surely, 2^233312320321 is an apocalyptic number.

It is an amenable number.

233312320321 is a deficient number, since it is larger than the sum of its proper divisors (10144013951).

233312320321 is a wasteful number, since it uses less digits than its factorization.

233312320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10144013950.

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

Adding to 233312320321 its reverse (123023213332), we get a palindrome (356335533653).

The spelling of 233312320321 in words is "two hundred thirty-three billion, three hundred twelve million, three hundred twenty thousand, three hundred twenty-one".