23403000000000 has 800 divisors, whose sum is σ = 80920890151200. Its totient is φ = 6003200000000.

The previous prime is 23402999999983. The next prime is 23403000000007. The reversal of 23403000000000 is 30432.

It is a tau number, because it is divible by the number of its divisors (800).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403000000007) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 86999999866 + ... + 87000000134.

It is an arithmetic number, because the mean of its divisors is an integer number (101151112689).

Almost surely, 2^{23403000000000} is an apocalyptic number.

23403000000000 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 23403000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40460445075600).

23403000000000 is an abundant number, since it is smaller than the sum of its proper divisors (57517890151200).

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

23403000000000 is an frugal number, since it uses more digits than its factorization.

23403000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 308 counting only the distinct ones).

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

Adding to 23403000000000 its reverse (30432), we get a palindrome (23403000030432).

The spelling of 23403000000000 in words is "twenty-three trillion, four hundred three billion", and thus it is an aban number.