2121311303 has 8 divisors (see below), whose sum is σ = 2171263248. Its totient is φ = 2071387584.

The previous prime is 2121311287. The next prime is 2121311317. The reversal of 2121311303 is 3031131212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2121311303 - 2⁴ = 2121311287 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 (2121311393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281675 + ... + 289107.

It is an arithmetic number, because the mean of its divisors is an integer number (271407906).

Almost surely, 2^2121311303 is an apocalyptic number.

2121311303 is a deficient number, since it is larger than the sum of its proper divisors (49951945).

2121311303 is an equidigital number, since it uses as much as digits as its factorization.

2121311303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14113.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2121311303 is about 46057.6953722177. The cubic root of 2121311303 is about 1284.8964681131.

Adding to 2121311303 its reverse (3031131212), we get a palindrome (5152442515).

The spelling of 2121311303 in words is "two billion, one hundred twenty-one million, three hundred eleven thousand, three hundred three".