23543135112 has 128 divisors (see below), whose sum is σ = 68291942400. Its totient is φ = 6624634368.

The previous prime is 23543135107. The next prime is 23543135123. The reversal of 23543135112 is 21153134532.

It is a self number, because there is not a number n which added to its sum of digits gives 23543135112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3929383 + ... + 3935369.

It is an arithmetic number, because the mean of its divisors is an integer number (533530800).

Almost surely, 2^23543135112 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 23543135112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34145971200).

23543135112 is an abundant number, since it is smaller than the sum of its proper divisors (44748807288).

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

23543135112 is a wasteful number, since it uses less digits than its factorization.

23543135112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355 (or 6351 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

Adding to 23543135112 its reverse (21153134532), we get a palindrome (44696269644).

The spelling of 23543135112 in words is "twenty-three billion, five hundred forty-three million, one hundred thirty-five thousand, one hundred twelve".