12113100 has 108 divisors (see below), whose sum is σ = 38974936. Its totient is φ = 3144960.

The previous prime is 12113093. The next prime is 12113117. The reversal of 12113100 is 131121.

12113100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12113100² = 293454383220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38544 + ... + 38856.

Almost surely, 2^12113100 is an apocalyptic number.

12113100 is a gapful number since it is divisible by the number (10) 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 12113100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19487468).

12113100 is an abundant number, since it is smaller than the sum of its proper divisors (26861836).

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

12113100 is a wasteful number, since it uses less digits than its factorization.

12113100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 12113100 is about 3480.3879094147. The cubic root of 12113100 is about 229.6598627027.

Adding to 12113100 its reverse (131121), we get a palindrome (12244221).

The spelling of 12113100 in words is "twelve million, one hundred thirteen thousand, one hundred".