120021133 has 4 divisors (see below), whose sum is σ = 120519388. Its totient is φ = 119522880.

The previous prime is 120021101. The next prime is 120021137. The reversal of 120021133 is 331120021.

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 71537764 + 48483369 = 8458^2 + 6963^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021133 - 2⁵ = 120021101 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 (120021137) 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, 248766 + ... + 249247.

It is an arithmetic number, because the mean of its divisors is an integer number (30129847).

Almost surely, 2^120021133 is an apocalyptic number.

It is an amenable number.

120021133 is a deficient number, since it is larger than the sum of its proper divisors (498255).

120021133 is an equidigital number, since it uses as much as digits as its factorization.

120021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498254.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 120021133 is about 10955.4156927065. The cubic root of 120021133 is about 493.2713678664.

Adding to 120021133 its reverse (331120021), we get a palindrome (451141154).

The spelling of 120021133 in words is "one hundred twenty million, twenty-one thousand, one hundred thirty-three".