23403321900 has 720 divisors, whose sum is σ = 92054941440. Its totient is φ = 5029516800.

The previous prime is 23403321863. The next prime is 23403321913. The reversal of 23403321900 is 912330432.

It is a happy number.

It is a super-2 number, since 2×23403321900² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 70704735 + ... + 70705065.

Almost surely, 2^23403321900 is an apocalyptic number.

23403321900 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 23403321900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46027470720).

23403321900 is an abundant number, since it is smaller than the sum of its proper divisors (68651619540).

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

23403321900 is a wasteful number, since it uses less digits than its factorization.

23403321900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The spelling of 23403321900 in words is "twenty-three billion, four hundred three million, three hundred twenty-one thousand, nine hundred".