1111110920 has 32 divisors (see below), whose sum is σ = 2522133720. Its totient is φ = 440509440.

The previous prime is 1111110911. The next prime is 1111110943. The reversal of 1111110920 is 290111111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 312370276 + 798740644 = 17674^2 + 28262^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118391 + ... + 127430.

Almost surely, 2^1111110920 is an apocalyptic number.

1111110920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111110920 is an abundant number, since it is smaller than the sum of its proper divisors (1411022800).

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

1111110920 is a wasteful number, since it uses less digits than its factorization.

1111110920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245945 (or 245941 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 17.

The square root of 1111110920 is about 33333.3304666665. The cubic root of 1111110920 is about 1035.7441092686.

The spelling of 1111110920 in words is "one billion, one hundred eleven million, one hundred ten thousand, nine hundred twenty".