23111023120 has 160 divisors (see below), whose sum is σ = 55724433408. Its totient is φ = 8909881344.

The previous prime is 23111023109. The next prime is 23111023123. The reversal of 23111023120 is 2132011132.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23111023094 and 23111023103.

It is not an unprimeable number, because it can be changed into a prime (23111023123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89926032 + ... + 89926288.

Almost surely, 2^23111023120 is an apocalyptic number.

23111023120 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 23111023120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27862216704).

23111023120 is an abundant number, since it is smaller than the sum of its proper divisors (32613410288).

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

23111023120 is a wasteful number, since it uses less digits than its factorization.

23111023120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23111023120 its reverse (2132011132), we get a palindrome (25243034252).

The spelling of 23111023120 in words is "twenty-three billion, one hundred eleven million, twenty-three thousand, one hundred twenty".