23111115000 has 160 divisors (see below), whose sum is σ = 74690154000. Its totient is φ = 5950336000.

The previous prime is 23111114989. The next prime is 23111115019. The reversal of 23111115000 is 51111132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 408436 + ... + 461564.

Almost surely, 2^23111115000 is an apocalyptic number.

23111115000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23111115000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37345077000).

23111115000 is an abundant number, since it is smaller than the sum of its proper divisors (51579039000).

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

23111115000 is a wasteful number, since it uses less digits than its factorization.

23111115000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53187 (or 53168 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 15.

Adding to 23111115000 its reverse (51111132), we get a palindrome (23162226132).

The spelling of 23111115000 in words is "twenty-three billion, one hundred eleven million, one hundred fifteen thousand".