23033021313 has 4 divisors (see below), whose sum is σ = 30710695088. Its totient is φ = 15355347540.

The previous prime is 23033021303. The next prime is 23033021327. The reversal of 23033021313 is 31312033032.

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 not a de Polignac number, because 23033021313 - 2⁵ = 23033021281 is a prime.

It is a super-2 number, since 2×23033021313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23033021313.

It is not an unprimeable number, because it can be changed into a prime (23033021303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838836883 + ... + 3838836888.

It is an arithmetic number, because the mean of its divisors is an integer number (7677673772).

Almost surely, 2^23033021313 is an apocalyptic number.

It is an amenable number.

23033021313 is a deficient number, since it is larger than the sum of its proper divisors (7677673775).

23033021313 is an equidigital number, since it uses as much as digits as its factorization.

23033021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677673774.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 23033021313 its reverse (31312033032), we get a palindrome (54345054345).

The spelling of 23033021313 in words is "twenty-three billion, thirty-three million, twenty-one thousand, three hundred thirteen".