2120555303 has 4 divisors (see below), whose sum is σ = 2120920800. Its totient is φ = 2120189808.

The previous prime is 2120555273. The next prime is 2120555309. The reversal of 2120555303 is 3035550212.

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

It is a cyclic number.

It is not a de Polignac number, because 2120555303 - 2¹² = 2120551207 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 (2120555309) 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, 173903 + ... + 185696.

It is an arithmetic number, because the mean of its divisors is an integer number (530230200).

Almost surely, 2^2120555303 is an apocalyptic number.

2120555303 is a deficient number, since it is larger than the sum of its proper divisors (365497).

2120555303 is an equidigital number, since it uses as much as digits as its factorization.

2120555303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365496.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 2120555303 is about 46049.4875432941. The cubic root of 2120555303 is about 1284.7438114134.

The spelling of 2120555303 in words is "two billion, one hundred twenty million, five hundred fifty-five thousand, three hundred three".