23313212111 has 6 divisors (see below), whose sum is σ = 27119450880. Its totient is φ = 19982753196.

The previous prime is 23313212077. The next prime is 23313212179. The reversal of 23313212111 is 11121231332.

It is a happy number.

It is not a de Polignac number, because 23313212111 - 2²² = 23309017807 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 (23313212311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237889871 + ... + 237889968.

It is an arithmetic number, because the mean of its divisors is an integer number (4519908480).

Almost surely, 2^23313212111 is an apocalyptic number.

23313212111 is a deficient number, since it is larger than the sum of its proper divisors (3806238769).

23313212111 is an equidigital number, since it uses as much as digits as its factorization.

23313212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475779853 (or 475779846 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 23313212111 its reverse (11121231332), we get a palindrome (34434443443).

The spelling of 23313212111 in words is "twenty-three billion, three hundred thirteen million, two hundred twelve thousand, one hundred eleven".