2100120303 has 4 divisors (see below), whose sum is σ = 2800160408. Its totient is φ = 1400080200.

The previous prime is 2100120287. The next prime is 2100120329. The reversal of 2100120303 is 3030210012.

It is a happy number.

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

It is not a de Polignac number, because 2100120303 - 2⁴ = 2100120287 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 (2100120353) 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, 350020048 + ... + 350020053.

It is an arithmetic number, because the mean of its divisors is an integer number (700040102).

Almost surely, 2^2100120303 is an apocalyptic number.

2100120303 is a deficient number, since it is larger than the sum of its proper divisors (700040105).

2100120303 is an equidigital number, since it uses as much as digits as its factorization.

2100120303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700040104.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2100120303 is about 45827.0695441024. The cubic root of 2100120303 is about 1280.6036180944.

Adding to 2100120303 its reverse (3030210012), we get a palindrome (5130330315).

The spelling of 2100120303 in words is "two billion, one hundred million, one hundred twenty thousand, three hundred three".