23111452056 has 128 divisors (see below), whose sum is σ = 72631733760. Its totient is φ = 6002916480.

The previous prime is 23111452051. The next prime is 23111452109. The reversal of 23111452056 is 65025411132.

It is a super-2 number, since 2×23111452056² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111452051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171930 + ... + 275286.

It is an arithmetic number, because the mean of its divisors is an integer number (567435420).

Almost surely, 2^23111452056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23111452056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36315866880).

23111452056 is an abundant number, since it is smaller than the sum of its proper divisors (49520281704).

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

23111452056 is a wasteful number, since it uses less digits than its factorization.

23111452056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103406 (or 103380 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 23111452056 its reverse (65025411132), we get a palindrome (88136863188).

The spelling of 23111452056 in words is "twenty-three billion, one hundred eleven million, four hundred fifty-two thousand, fifty-six".