1120019985 has 48 divisors (see below), whose sum is σ = 2236256256. Its totient is φ = 507959424.

The previous prime is 1120019977. The next prime is 1120020023. The reversal of 1120019985 is 5899100211.

It is not a de Polignac number, because 1120019985 - 2³ = 1120019977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26007 + ... + 54003.

It is an arithmetic number, because the mean of its divisors is an integer number (46588672).

Almost surely, 2^1120019985 is an apocalyptic number.

1120019985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1120019985 is a deficient number, since it is larger than the sum of its proper divisors (1116236271).

1120019985 is a wasteful number, since it uses less digits than its factorization.

1120019985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28142 (or 28139 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The square root of 1120019985 is about 33466.6996430780. The cubic root of 1120019985 is about 1038.5049972379.

The spelling of 1120019985 in words is "one billion, one hundred twenty million, nineteen thousand, nine hundred eighty-five".