23112200 has 24 divisors (see below), whose sum is σ = 53736330. Its totient is φ = 9244800.

The previous prime is 23112191. The next prime is 23112209. The reversal of 23112200 is 221132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23112191) and next prime (23112209).

It can be written as a sum of positive squares in 3 ways, for example, as 10252804 + 12859396 = 3202^2 + 3586^2 .

It is not an unprimeable number, because it can be changed into a prime (23112209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57581 + ... + 57980.

Almost surely, 2^23112200 is an apocalyptic number.

23112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23112200 is an abundant number, since it is smaller than the sum of its proper divisors (30624130).

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

23112200 is a wasteful number, since it uses less digits than its factorization.

23112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115577 (or 115568 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 23112200 is about 4807.5149505748. The cubic root of 23112200 is about 284.8483855531.

Adding to 23112200 its reverse (221132), we get a palindrome (23333332).

The spelling of 23112200 in words is "twenty-three million, one hundred twelve thousand, two hundred".