11271900 has 36 divisors (see below), whose sum is σ = 32614232. Its totient is φ = 3005760.

The previous prime is 11271899. The next prime is 11271919. The reversal of 11271900 is 917211.

It is a super-2 number, since 2×11271900² = 254111459220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18487 + ... + 19086.

Almost surely, 2^11271900 is an apocalyptic number.

11271900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11271900 is an abundant number, since it is smaller than the sum of its proper divisors (21342332).

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

11271900 is a wasteful number, since it uses less digits than its factorization.

11271900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37590 (or 37583 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 11271900 is about 3357.3650382406. The cubic root of 11271900 is about 224.2155397708.

The spelling of 11271900 in words is "eleven million, two hundred seventy-one thousand, nine hundred".