23112100 has 36 divisors (see below), whose sum is σ = 54715248. Its totient is φ = 8404000.

The previous prime is 23112083. The next prime is 23112121. The reversal of 23112100 is 121132.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9406 + ... + 11605.

It is an arithmetic number, because the mean of its divisors is an integer number (1519868).

Almost surely, 2^23112100 is an apocalyptic number.

23112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23112100 is an abundant number, since it is smaller than the sum of its proper divisors (31603148).

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

23112100 is a wasteful number, since it uses less digits than its factorization.

23112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21036 (or 21029 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 23112100 is about 4807.5045501799. The cubic root of 23112100 is about 284.8479747328.

Adding to 23112100 its reverse (121132), we get a palindrome (23233232).

The spelling of 23112100 in words is "twenty-three million, one hundred twelve thousand, one hundred".