23021330320 has 80 divisors (see below), whose sum is σ = 53776736640. Its totient is φ = 9165284352.

The previous prime is 23021330287. The next prime is 23021330347. The reversal of 23021330320 is 2303312032.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23806477 + ... + 23807443.

It is an arithmetic number, because the mean of its divisors is an integer number (672209208).

Almost surely, 2^23021330320 is an apocalyptic number.

23021330320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23021330320 is an abundant number, since it is smaller than the sum of its proper divisors (30755406320).

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

23021330320 is a wasteful number, since it uses less digits than its factorization.

23021330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072 (or 2066 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 23021330320 its reverse (2303312032), we get a palindrome (25324642352).

The spelling of 23021330320 in words is "twenty-three billion, twenty-one million, three hundred thirty thousand, three hundred twenty".