23112112312213 has 4 divisors (see below), whose sum is σ = 23112612220300. Its totient is φ = 23111612404128.

The previous prime is 23112112312169. The next prime is 23112112312249. The reversal of 23112112312213 is 31221321121132.

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 11481952581009 + 11630159731204 = 3388503^2 + 3410302^2 .

It is a cyclic number.

It is not a de Polignac number, because 23112112312213 - 2²⁹ = 23111575441301 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 (23112112312013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249884688 + ... + 249977161.

It is an arithmetic number, because the mean of its divisors is an integer number (5778153055075).

Almost surely, 2^{23112112312213} is an apocalyptic number.

It is an amenable number.

23112112312213 is a deficient number, since it is larger than the sum of its proper divisors (499908087).

23112112312213 is an equidigital number, since it uses as much as digits as its factorization.

23112112312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499908086.

The product of its digits is 864, while the sum is 25.

Adding to 23112112312213 its reverse (31221321121132), we get a palindrome (54333433433345).

The spelling of 23112112312213 in words is "twenty-three trillion, one hundred twelve billion, one hundred twelve million, three hundred twelve thousand, two hundred thirteen".