2121324344 has 32 divisors (see below), whose sum is σ = 4007967600. Its totient is φ = 1052559360.

The previous prime is 2121324341. The next prime is 2121324371. The reversal of 2121324344 is 4434231212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121324341) 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, 834227 + ... + 836765.

Almost surely, 2^2121324344 is an apocalyptic number.

It is an amenable number.

2121324344 is a deficient number, since it is larger than the sum of its proper divisors (1886643256).

2121324344 is a wasteful number, since it uses less digits than its factorization.

2121324344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303 (or 3299 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 2121324344 is about 46057.8369444332. The cubic root of 2121324344 is about 1284.8991011229.

Adding to 2121324344 its reverse (4434231212), we get a palindrome (6555555556).

The spelling of 2121324344 in words is "two billion, one hundred twenty-one million, three hundred twenty-four thousand, three hundred forty-four".