110120101999 has 4 divisors (see below), whose sum is σ = 110120826240. Its totient is φ = 110119377760.

The previous prime is 110120101997. The next prime is 110120102009. The reversal of 110120101999 is 999101021011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 110120101999 - 2¹ = 110120101997 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 (110120101997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36367 + ... + 470704.

It is an arithmetic number, because the mean of its divisors is an integer number (27530206560).

Almost surely, 2^110120101999 is an apocalyptic number.

110120101999 is a deficient number, since it is larger than the sum of its proper divisors (724241).

110120101999 is an equidigital number, since it uses as much as digits as its factorization.

110120101999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724240.

The product of its (nonzero) digits is 1458, while the sum is 34.

The spelling of 110120101999 in words is "one hundred ten billion, one hundred twenty million, one hundred one thousand, nine hundred ninety-nine".