11381900 has 18 divisors (see below), whose sum is σ = 24698940. Its totient is φ = 4552720.

The previous prime is 11381899. The next prime is 11381921. The reversal of 11381900 is 918311.

11381900 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 2×11381900² = 259095295220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56810 + ... + 57009.

Almost surely, 2^11381900 is an apocalyptic number.

11381900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11381900 is an abundant number, since it is smaller than the sum of its proper divisors (13317040).

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

11381900 is a wasteful number, since it uses less digits than its factorization.

11381900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113833 (or 113826 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 11381900 is about 3373.7071597873. The cubic root of 11381900 is about 224.9425367659.

The spelling of 11381900 in words is "eleven million, three hundred eighty-one thousand, nine hundred".