23012322320 has 80 divisors (see below), whose sum is σ = 57744970752. Its totient is φ = 8478328320.

The previous prime is 23012322317. The next prime is 23012322337. The reversal of 23012322320 is 2322321032.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23012322292 and 23012322301.

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, 457625 + ... + 505415.

Almost surely, 2^23012322320 is an apocalyptic number.

23012322320 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 23012322320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28872485376).

23012322320 is an abundant number, since it is smaller than the sum of its proper divisors (34732648432).

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

23012322320 is a wasteful number, since it uses less digits than its factorization.

23012322320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48280 (or 48274 counting only the distinct ones).

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

Adding to 23012322320 its reverse (2322321032), we get a palindrome (25334643352).

The spelling of 23012322320 in words is "twenty-three billion, twelve million, three hundred twenty-two thousand, three hundred twenty".