23043021320320 has 128 divisors (see below), whose sum is σ = 56990288966400. Its totient is φ = 8898826137600.

The previous prime is 23043021320311. The next prime is 23043021320329. The reversal of 23043021320320 is 2302312034032.

It is an interprime number because it is at equal distance from previous prime (23043021320311) and next prime (23043021320329).

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (23043021320329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435149845 + ... + 435202795.

It is an arithmetic number, because the mean of its divisors is an integer number (445236632550).

Almost surely, 2^{23043021320320} is an apocalyptic number.

23043021320320 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 23043021320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28495144483200).

23043021320320 is an abundant number, since it is smaller than the sum of its proper divisors (33947267646080).

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

23043021320320 is a wasteful number, since it uses less digits than its factorization.

23043021320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76446 (or 76434 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 23043021320320 its reverse (2302312034032), we get a palindrome (25345333354352).

The spelling of 23043021320320 in words is "twenty-three trillion, forty-three billion, twenty-one million, three hundred twenty thousand, three hundred twenty".