120280099 has 4 divisors (see below), whose sum is σ = 120319560. Its totient is φ = 120240640.

The previous prime is 120280057. The next prime is 120280103. The reversal of 120280099 is 990082021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990082021 = 107 ⋅9253103.

It is a cyclic number.

It is not a de Polignac number, because 120280099 - 2²³ = 111891491 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120280099.

It is not an unprimeable number, because it can be changed into a prime (120220099) 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, 14737 + ... + 21394.

It is an arithmetic number, because the mean of its divisors is an integer number (30079890).

Almost surely, 2^120280099 is an apocalyptic number.

120280099 is a deficient number, since it is larger than the sum of its proper divisors (39461).

120280099 is an equidigital number, since it uses as much as digits as its factorization.

120280099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39460.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 120280099 is about 10967.2284101317. The cubic root of 120280099 is about 493.6258852914.

The spelling of 120280099 in words is "one hundred twenty million, two hundred eighty thousand, ninety-nine".