120120901 has 4 divisors (see below), whose sum is σ = 120195052. Its totient is φ = 120046752.

The previous prime is 120120899. The next prime is 120120911. The reversal of 120120901 is 109021021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 109021021 = 499 ⋅218479.

It can be written as a sum of positive squares in 2 ways, for example, as 61230625 + 58890276 = 7825^2 + 7674^2 .

It is a cyclic number.

It is not a de Polignac number, because 120120901 - 2¹ = 120120899 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 (120120911) 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, 34590 + ... + 37903.

It is an arithmetic number, because the mean of its divisors is an integer number (30048763).

Almost surely, 2^120120901 is an apocalyptic number.

It is an amenable number.

120120901 is a deficient number, since it is larger than the sum of its proper divisors (74151).

120120901 is an equidigital number, since it uses as much as digits as its factorization.

120120901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74150.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 120120901 is about 10959.9681112675. The cubic root of 120120901 is about 493.4080078809.

Adding to 120120901 its reverse (109021021), we get a palindrome (229141922).

The spelling of 120120901 in words is "one hundred twenty million, one hundred twenty thousand, nine hundred one".