23021400204 has 192 divisors, whose sum is σ = 69406848000. Its totient is φ = 6521472000.

The previous prime is 23021400137. The next prime is 23021400229. The reversal of 23021400204 is 40200412032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3045822 + ... + 3053370.

It is an arithmetic number, because the mean of its divisors is an integer number (361494000).

Almost surely, 2^23021400204 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 23021400204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34703424000).

23021400204 is an abundant number, since it is smaller than the sum of its proper divisors (46385447796).

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

23021400204 is a wasteful number, since it uses less digits than its factorization.

23021400204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7741 (or 7733 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23021400204 its reverse (40200412032), we get a palindrome (63221812236).

The spelling of 23021400204 in words is "twenty-three billion, twenty-one million, four hundred thousand, two hundred four".