23312111311 has 4 divisors (see below), whose sum is σ = 24325681392. Its totient is φ = 22298541232.

The previous prime is 23312111297. The next prime is 23312111323. The reversal of 23312111311 is 11311121332.

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

It is a cyclic number.

It is not a de Polignac number, because 23312111311 - 2⁵ = 23312111279 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 (23312111371) 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, 506785006 + ... + 506785051.

It is an arithmetic number, because the mean of its divisors is an integer number (6081420348).

Almost surely, 2^23312111311 is an apocalyptic number.

23312111311 is a deficient number, since it is larger than the sum of its proper divisors (1013570081).

23312111311 is a wasteful number, since it uses less digits than its factorization.

23312111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013570080.

The product of its digits is 108, while the sum is 19.

Adding to 23312111311 its reverse (11311121332), we get a palindrome (34623232643).

The spelling of 23312111311 in words is "twenty-three billion, three hundred twelve million, one hundred eleven thousand, three hundred eleven".