2121313333 has 8 divisors (see below), whose sum is σ = 2145936800. Its totient is φ = 2096823888.

The previous prime is 2121313307. The next prime is 2121313339. The reversal of 2121313333 is 3333131212.

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 2121313333 - 2⁹ = 2121312821 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 (2121313339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1491 + ... + 65152.

It is an arithmetic number, because the mean of its divisors is an integer number (268242100).

Almost surely, 2^2121313333 is an apocalyptic number.

It is an amenable number.

2121313333 is a deficient number, since it is larger than the sum of its proper divisors (24623467).

2121313333 is a wasteful number, since it uses less digits than its factorization.

2121313333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67011.

The product of its digits is 972, while the sum is 22.

The square root of 2121313333 is about 46057.7174097892. The cubic root of 2121313333 is about 1284.8968779757.

Adding to 2121313333 its reverse (3333131212), we get a palindrome (5454444545).

The spelling of 2121313333 in words is "two billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred thirty-three".