2131421333 has 8 divisors (see below), whose sum is σ = 2154859200. Its totient is φ = 2108036448.

The previous prime is 2131421329. The next prime is 2131421401. The reversal of 2131421333 is 3331241312.

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 2131421333 - 2² = 2131421329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131421299 and 2131421308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131411333) 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, 70538 + ... + 96116.

It is an arithmetic number, because the mean of its divisors is an integer number (269357400).

Almost surely, 2^2131421333 is an apocalyptic number.

It is an amenable number.

2131421333 is a deficient number, since it is larger than the sum of its proper divisors (23437867).

2131421333 is a wasteful number, since it uses less digits than its factorization.

2131421333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26491.

The product of its digits is 1296, while the sum is 23.

The square root of 2131421333 is about 46167.3188846829. The cubic root of 2131421333 is about 1286.9344778497.

Adding to 2131421333 its reverse (3331241312), we get a palindrome (5462662645).

The spelling of 2131421333 in words is "two billion, one hundred thirty-one million, four hundred twenty-one thousand, three hundred thirty-three".