1120019999 has 24 divisors (see below), whose sum is σ = 1374251760. Its totient is φ = 907635456.

The previous prime is 1120019977. The next prime is 1120020023. The reversal of 1120019999 is 9999100211.

It is a happy number.

It is not a de Polignac number, because 1120019999 - 2⁸ = 1120019743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120019939) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 629399 + ... + 631175.

It is an arithmetic number, because the mean of its divisors is an integer number (57260490).

Almost surely, 2^1120019999 is an apocalyptic number.

1120019999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1120019999 is a deficient number, since it is larger than the sum of its proper divisors (254231761).

1120019999 is a wasteful number, since it uses less digits than its factorization.

1120019999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487 (or 2480 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 41.

The square root of 1120019999 is about 33466.6998522412. The cubic root of 1120019999 is about 1038.5050015650.

The spelling of 1120019999 in words is "one billion, one hundred twenty million, nineteen thousand, nine hundred ninety-nine".