1111109990 has 16 divisors (see below), whose sum is σ = 2086954848. Its totient is φ = 425120256.

The previous prime is 1111109971. The next prime is 1111110001. The reversal of 1111109990 is 999011111.

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 7 ways as a sum of consecutive naturals, for example, 2415227 + ... + 2415686.

It is an arithmetic number, because the mean of its divisors is an integer number (130434678).

Almost surely, 2^1111109990 is an apocalyptic number.

1111109990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111109990 is a deficient number, since it is larger than the sum of its proper divisors (975844858).

1111109990 is a wasteful number, since it uses less digits than its factorization.

1111109990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830943.

The product of its (nonzero) digits is 729, while the sum is 32.

The square root of 1111109990 is about 33333.3165166624. The cubic root of 1111109990 is about 1035.7438202959.

The spelling of 1111109990 in words is "one billion, one hundred eleven million, one hundred nine thousand, nine hundred ninety".