233223312013 has 4 divisors (see below), whose sum is σ = 233224432000. Its totient is φ = 233222192028.

The previous prime is 233223311989. The next prime is 233223312041. The reversal of 233223312013 is 310213322332.

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 233223312013 - 2⁹ = 233223311501 is a prime.

It is a super-2 number, since 2×233223312013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233223372013) 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, 145245 + ... + 698242.

It is an arithmetic number, because the mean of its divisors is an integer number (58306108000).

Almost surely, 2^233223312013 is an apocalyptic number.

It is an amenable number.

233223312013 is a deficient number, since it is larger than the sum of its proper divisors (1119987).

233223312013 is an equidigital number, since it uses as much as digits as its factorization.

233223312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119986.

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

Adding to 233223312013 its reverse (310213322332), we get a palindrome (543436634345).

The spelling of 233223312013 in words is "two hundred thirty-three billion, two hundred twenty-three million, three hundred twelve thousand, thirteen".