1120111900 has 18 divisors (see below), whose sum is σ = 2430643040. Its totient is φ = 448044720.

The previous prime is 1120111877. The next prime is 1120111931. The reversal of 1120111900 is 91110211.

It is a super-2 number, since 2×1120111900² = 2509301337043220000, 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 (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5600460 + ... + 5600659.

Almost surely, 2^1120111900 is an apocalyptic number.

1120111900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120111900 is an abundant number, since it is smaller than the sum of its proper divisors (1310531140).

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

1120111900 is a wasteful number, since it uses less digits than its factorization.

1120111900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11201133 (or 11201126 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 1120111900 is about 33468.0728456241. The cubic root of 1120111900 is about 1038.5334049381.

The spelling of 1120111900 in words is "one billion, one hundred twenty million, one hundred eleven thousand, nine hundred".