23133131213 has 2 divisors, whose sum is σ = 23133131214. Its totient is φ = 23133131212.

The previous prime is 23133131101. The next prime is 23133131227. The reversal of 23133131213 is 31213133132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23036561284 + 96569929 = 151778^2 + 9827^2 .

It is a cyclic number.

It is not a de Polignac number, because 23133131213 - 2¹⁶ = 23133065677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23133131243) 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 as a sum of consecutive naturals, namely, 11566565606 + 11566565607.

It is an arithmetic number, because the mean of its divisors is an integer number (11566565607).

Almost surely, 2^23133131213 is an apocalyptic number.

It is an amenable number.

23133131213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23133131213 is an equidigital number, since it uses as much as digits as its factorization.

23133131213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 23.

Adding to 23133131213 its reverse (31213133132), we get a palindrome (54346264345).

The spelling of 23133131213 in words is "twenty-three billion, one hundred thirty-three million, one hundred thirty-one thousand, two hundred thirteen".