23100320220 has 96 divisors (see below), whose sum is σ = 66982379520. Its totient is φ = 5942177280.

The previous prime is 23100320219. The next prime is 23100320249. The reversal of 23100320220 is 2202300132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23100320220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562341 + ... + 602019.

It is an arithmetic number, because the mean of its divisors is an integer number (697733120).

Almost surely, 2^23100320220 is an apocalyptic number.

23100320220 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 23100320220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33491189760).

23100320220 is an abundant number, since it is smaller than the sum of its proper divisors (43882059300).

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

23100320220 is a wasteful number, since it uses less digits than its factorization.

23100320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40035 (or 40033 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23100320220 its reverse (2202300132), we get a palindrome (25302620352).

The spelling of 23100320220 in words is "twenty-three billion, one hundred million, three hundred twenty thousand, two hundred twenty".