11231100 has 54 divisors (see below), whose sum is σ = 35206080. Its totient is φ = 2994720.

The previous prime is 11231093. The next prime is 11231111. The reversal of 11231100 is 113211.

It is a super-2 number, since 2×11231100² = 252275214420000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5340 + ... + 7139.

Almost surely, 2^11231100 is an apocalyptic number.

11231100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231100 is an abundant number, since it is smaller than the sum of its proper divisors (23974980).

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

11231100 is a wasteful number, since it uses less digits than its factorization.

11231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499 (or 12489 counting only the distinct ones).

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

The square root of 11231100 is about 3351.2833362758. The cubic root of 11231100 is about 223.9446876609.

Adding to 11231100 its reverse (113211), we get a palindrome (11344311).

The spelling of 11231100 in words is "eleven million, two hundred thirty-one thousand, one hundred".