23111344512 has 192 divisors, whose sum is σ = 68219994960. Its totient is φ = 7507169280.

The previous prime is 23111344463. The next prime is 23111344513. The reversal of 23111344512 is 21544311132.

23111344512 is a `hidden beast` number, since 2 + 3 + 11 + 134 + 4 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111344513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9584587 + ... + 9586997.

Almost surely, 2^23111344512 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 23111344512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34109997480).

23111344512 is an abundant number, since it is smaller than the sum of its proper divisors (45108650448).

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

23111344512 is a wasteful number, since it uses less digits than its factorization.

23111344512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641 (or 2626 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 23111344512 its reverse (21544311132), we get a palindrome (44655655644).

It can be divided in two parts, 231113 and 44512, that added together give a square (275625 = 525²).

The spelling of 23111344512 in words is "twenty-three billion, one hundred eleven million, three hundred forty-four thousand, five hundred twelve".