2121031333 has 8 divisors (see below), whose sum is σ = 2248548120. Its totient is φ = 1993820160.

The previous prime is 2121031331. The next prime is 2121031343. The reversal of 2121031333 is 3331301212.

It can be written as a sum of positive squares in 4 ways, for example, as 657050689 + 1463980644 = 25633^2 + 38262^2 .

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 2121031333 - 2¹ = 2121031331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121031333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121031331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62028 + ... + 89941.

It is an arithmetic number, because the mean of its divisors is an integer number (281068515).

Almost surely, 2^2121031333 is an apocalyptic number.

It is an amenable number.

2121031333 is a deficient number, since it is larger than the sum of its proper divisors (127516787).

2121031333 is a wasteful number, since it uses less digits than its factorization.

2121031333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152807.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2121031333 is about 46054.6559318382. The cubic root of 2121031333 is about 1284.8399388819.

Adding to 2121031333 its reverse (3331301212), we get a palindrome (5452332545).

The spelling of 2121031333 in words is "two billion, one hundred twenty-one million, thirty-one thousand, three hundred thirty-three".