2121303303 has 32 divisors (see below), whose sum is σ = 3627217920. Its totient is φ = 1200160800.

The previous prime is 2121303263. The next prime is 2121303307. The reversal of 2121303303 is 3033031212.

It is not a de Polignac number, because 2121303303 - 2⁹ = 2121302791 is a prime.

2121303303 is a modest number, since divided by 303303 gives 2121 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121303307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36475 + ... + 74652.

It is an arithmetic number, because the mean of its divisors is an integer number (113350560).

Almost surely, 2^2121303303 is an apocalyptic number.

2121303303 is a deficient number, since it is larger than the sum of its proper divisors (1505914617).

2121303303 is a wasteful number, since it uses less digits than its factorization.

2121303303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111244 (or 111238 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2121303303 is about 46057.6085245424. The cubic root of 2121303303 is about 1284.8948528881.

Adding to 2121303303 its reverse (3033031212), we get a palindrome (5154334515).

The spelling of 2121303303 in words is "two billion, one hundred twenty-one million, three hundred three thousand, three hundred three".