1120100999 has 4 divisors (see below), whose sum is σ = 1120950240. Its totient is φ = 1119251760.

The previous prime is 1120100987. The next prime is 1120101013. The reversal of 1120100999 is 9990010211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9990010211 = 7451 ⋅1340761.

It is a cyclic number.

It is not a de Polignac number, because 1120100999 - 2⁴ = 1120100983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120100909) 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 3 ways as a sum of consecutive naturals, for example, 422639 + ... + 425280.

It is an arithmetic number, because the mean of its divisors is an integer number (280237560).

Almost surely, 2^1120100999 is an apocalyptic number.

1120100999 is a deficient number, since it is larger than the sum of its proper divisors (849241).

1120100999 is an equidigital number, since it uses as much as digits as its factorization.

1120100999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849240.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 1120100999 is about 33467.9099885248. The cubic root of 1120100999 is about 1038.5300359029.

The spelling of 1120100999 in words is "one billion, one hundred twenty million, one hundred thousand, nine hundred ninety-nine".