23513234144 has 96 divisors (see below), whose sum is σ = 50087890944. Its totient is φ = 10833546240.

The previous prime is 23513234137. The next prime is 23513234159. The reversal of 23513234144 is 44143231532.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 23513234144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5313917 + ... + 5318339.

It is an arithmetic number, because the mean of its divisors is an integer number (521748864).

Almost surely, 2^23513234144 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 23513234144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25043945472).

23513234144 is an abundant number, since it is smaller than the sum of its proper divisors (26574656800).

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

23513234144 is a wasteful number, since it uses less digits than its factorization.

23513234144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720 (or 4712 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

Adding to 23513234144 its reverse (44143231532), we get a palindrome (67656465676).

The spelling of 23513234144 in words is "twenty-three billion, five hundred thirteen million, two hundred thirty-four thousand, one hundred forty-four".