23311112111 has 8 divisors (see below), whose sum is σ = 26835733920. Its totient is φ = 19835106048.

The previous prime is 23311112089. The next prime is 23311112161. The reversal of 23311112111 is 11121111332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23311112111 - 2⁶ = 23311112047 is a prime.

It is a super-2 number, since 2×23311112111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23311112111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311112161) 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 7 ways as a sum of consecutive naturals, for example, 12152906 + ... + 12154823.

It is an arithmetic number, because the mean of its divisors is an integer number (3354466740).

Almost surely, 2^23311112111 is an apocalyptic number.

23311112111 is a deficient number, since it is larger than the sum of its proper divisors (3524621809).

23311112111 is a wasteful number, since it uses less digits than its factorization.

23311112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24307873.

The product of its digits is 36, while the sum is 17.

Adding to 23311112111 its reverse (11121111332), we get a palindrome (34432223443).

The spelling of 23311112111 in words is "twenty-three billion, three hundred eleven million, one hundred twelve thousand, one hundred eleven".