23320140032 has 72 divisors (see below), whose sum is σ = 53228801472. Its totient is φ = 9988761600.

The previous prime is 23320140017. The next prime is 23320140083. The reversal of 23320140032 is 23004102332.

It is a super-2 number, since 2×23320140032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23320139986 and 23320140013.

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 7 ways as a sum of consecutive naturals, for example, 5698307 + ... + 5702397.

Almost surely, 2^23320140032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23320140032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26614400736).

23320140032 is an abundant number, since it is smaller than the sum of its proper divisors (29908661440).

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

23320140032 is an equidigital number, since it uses as much as digits as its factorization.

23320140032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7295 (or 7281 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23320140032 its reverse (23004102332), we get a palindrome (46324242364).

The spelling of 23320140032 in words is "twenty-three billion, three hundred twenty million, one hundred forty thousand, thirty-two".