110120300021 has 4 divisors (see below), whose sum is σ = 110237825292. Its totient is φ = 110002774752.

The previous prime is 110120300009. The next prime is 110120300023. The reversal of 110120300021 is 120003021011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17086149796 + 93034150225 = 130714^2 + 305015^2 .

It is a cyclic number.

It is not a de Polignac number, because 110120300021 - 2⁶ = 110120299957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110120299975 and 110120300011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110120300023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58761230 + ... + 58763103.

It is an arithmetic number, because the mean of its divisors is an integer number (27559456323).

Almost surely, 2^110120300021 is an apocalyptic number.

It is an amenable number.

110120300021 is a deficient number, since it is larger than the sum of its proper divisors (117525271).

110120300021 is an equidigital number, since it uses as much as digits as its factorization.

110120300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117525270.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 110120300021 its reverse (120003021011), we get a palindrome (230123321032).

The spelling of 110120300021 in words is "one hundred ten billion, one hundred twenty million, three hundred thousand, twenty-one".