23021010320 has 80 divisors (see below), whose sum is σ = 66731050368. Its totient is φ = 7175377920.

The previous prime is 23021010307. The next prime is 23021010329. The reversal of 23021010320 is 2301012032.

It is a happy number.

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 (14).

It is a junction number, because it is equal to n+sod(n) for n = 23021010295 and 23021010304.

It is not an unprimeable number, because it can be changed into a prime (23021010329) 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, 1862429 + ... + 1874748.

Almost surely, 2^23021010320 is an apocalyptic number.

23021010320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23021010320 is an abundant number, since it is smaller than the sum of its proper divisors (43710040048).

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

23021010320 is a wasteful number, since it uses less digits than its factorization.

23021010320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737208 (or 3737202 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23021010320 its reverse (2301012032), we get a palindrome (25322022352).

The spelling of 23021010320 in words is "twenty-three billion, twenty-one million, ten thousand, three hundred twenty".