23133112213 has 4 divisors (see below), whose sum is σ = 23758331500. Its totient is φ = 22507892928.

The previous prime is 23133112187. The next prime is 23133112217. The reversal of 23133112213 is 31221133132.

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 9649722289 + 13483389924 = 98233^2 + 116118^2 .

It is a cyclic number.

It is not a de Polignac number, because 23133112213 - 2⁵ = 23133112181 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 (23133112217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312609588 + ... + 312609661.

It is an arithmetic number, because the mean of its divisors is an integer number (5939582875).

Almost surely, 2^23133112213 is an apocalyptic number.

It is an amenable number.

23133112213 is a deficient number, since it is larger than the sum of its proper divisors (625219287).

23133112213 is an equidigital number, since it uses as much as digits as its factorization.

23133112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625219286.

The product of its digits is 648, while the sum is 22.

Adding to 23133112213 its reverse (31221133132), we get a palindrome (54354245345).

The spelling of 23133112213 in words is "twenty-three billion, one hundred thirty-three million, one hundred twelve thousand, two hundred thirteen".