23111122112 has 56 divisors (see below), whose sum is σ = 51988364400. Its totient is φ = 10105261056.

The previous prime is 23111122079. The next prime is 23111122123. The reversal of 23111122112 is 21122111132.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715187 + ... + 746802.

It is an arithmetic number, because the mean of its divisors is an integer number (928363650).

Almost surely, 2^23111122112 is an apocalyptic number.

It is an amenable number.

23111122112 is an abundant number, since it is smaller than the sum of its proper divisors (28877242288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23111122112 is a wasteful number, since it uses less digits than its factorization.

23111122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462033 (or 1462023 counting only the distinct ones).

The product of its digits is 48, while the sum is 17.

Adding to 23111122112 its reverse (21122111132), we get a palindrome (44233233244).

The spelling of 23111122112 in words is "twenty-three billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twelve".