23213133313 has 4 divisors (see below), whose sum is σ = 23271021828. Its totient is φ = 23155244800.

The previous prime is 23213133263. The next prime is 23213133319. The reversal of 23213133313 is 31333131232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11493555264 + 11719578049 = 107208^2 + 108257^2 .

It is a cyclic number.

It is not a de Polignac number, because 23213133313 - 2²¹ = 23211036161 is a prime.

It is a super-2 number, since 2×23213133313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23213133319) 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, 28943656 + ... + 28944457.

It is an arithmetic number, because the mean of its divisors is an integer number (5817755457).

Almost surely, 2^23213133313 is an apocalyptic number.

It is an amenable number.

23213133313 is a deficient number, since it is larger than the sum of its proper divisors (57888515).

23213133313 is an equidigital number, since it uses as much as digits as its factorization.

23213133313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57888514.

The product of its digits is 2916, while the sum is 25.

Adding to 23213133313 its reverse (31333131232), we get a palindrome (54546264545).

The spelling of 23213133313 in words is "twenty-three billion, two hundred thirteen million, one hundred thirty-three thousand, three hundred thirteen".