23100320 has 48 divisors (see below), whose sum is σ = 54862920. Its totient is φ = 9191424.

The previous prime is 23100313. The next prime is 23100353. The reversal of 23100320 is 2300132.

It can be written as a sum of positive squares in 4 ways, for example, as 21492496 + 1607824 = 4636^2 + 1268^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56276 + ... + 56684.

Almost surely, 2^23100320 is an apocalyptic number.

23100320 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 23100320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27431460).

23100320 is an abundant number, since it is smaller than the sum of its proper divisors (31762600).

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

23100320 is a wasteful number, since it uses less digits than its factorization.

23100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 23100320 is about 4806.2792261790. The cubic root of 23100320 is about 284.7995718127.

Adding to 23100320 its reverse (2300132), we get a palindrome (25400452).

The spelling of 23100320 in words is "twenty-three million, one hundred thousand, three hundred twenty".