23403000000 has 392 divisors, whose sum is σ = 80366158800. Its totient is φ = 6003200000.

The previous prime is 23402999999. The next prime is 23403000011. The reversal of 23403000000 is 30432.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 23403000000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 86999866 + ... + 87000134.

Almost surely, 2^23403000000 is an apocalyptic number.

23403000000 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 23403000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40183079400).

23403000000 is an abundant number, since it is smaller than the sum of its proper divisors (56963158800).

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

23403000000 is an frugal number, since it uses more digits than its factorization.

23403000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 23403000000 its reverse (30432), we get a palindrome (23403030432).

The spelling of 23403000000 in words is "twenty-three billion, four hundred three million", and thus it is an aban number.