23123230400 has 84 divisors (see below), whose sum is σ = 57008862360. Its totient is φ = 9231206400.

The previous prime is 23123230397. The next prime is 23123230409. The reversal of 23123230400 is 403232132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (23123230409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 819731 + ... + 847469.

Almost surely, 2^23123230400 is an apocalyptic number.

23123230400 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 23123230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28504431180).

23123230400 is an abundant number, since it is smaller than the sum of its proper divisors (33885631960).

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

23123230400 is a wasteful number, since it uses less digits than its factorization.

23123230400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28282 (or 28267 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23123230400 its reverse (403232132), we get a palindrome (23526462532).

The spelling of 23123230400 in words is "twenty-three billion, one hundred twenty-three million, two hundred thirty thousand, four hundred".