23012200 has 24 divisors (see below), whose sum is σ = 53503830. Its totient is φ = 9204800.

The previous prime is 23012191. The next prime is 23012219. The reversal of 23012200 is 221032.

It can be written as a sum of positive squares in 3 ways, for example, as 12630916 + 10381284 = 3554^2 + 3222^2 .

It is a super-2 number, since 2×23012200² = 1059122697680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57331 + ... + 57730.

Almost surely, 2^23012200 is an apocalyptic number.

23012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23012200 is an abundant number, since it is smaller than the sum of its proper divisors (30491630).

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

23012200 is a wasteful number, since it uses less digits than its factorization.

23012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115077 (or 115068 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 23012200 is about 4797.1032926132. The cubic root of 23012200 is about 284.4369719626.

Adding to 23012200 its reverse (221032), we get a palindrome (23233232).

The spelling of 23012200 in words is "twenty-three million, twelve thousand, two hundred".