2121324341 has 2 divisors, whose sum is σ = 2121324342. Its totient is φ = 2121324340.

The previous prime is 2121324323. The next prime is 2121324371. The reversal of 2121324341 is 1434231212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2074347025 + 46977316 = 45545^2 + 6854^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121324341 - 2²⁶ = 2054215477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121324371) 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 as a sum of consecutive naturals, namely, 1060662170 + 1060662171.

It is an arithmetic number, because the mean of its divisors is an integer number (1060662171).

Almost surely, 2^2121324341 is an apocalyptic number.

It is an amenable number.

2121324341 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121324341 is an equidigital number, since it uses as much as digits as its factorization.

2121324341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 2121324341 is about 46057.8369118655. The cubic root of 2121324341 is about 1284.8991005172.

Adding to 2121324341 its reverse (1434231212), we get a palindrome (3555555553).

It can be divided in two parts, 21213 and 24341, that added together give a palindrome (45554).

The spelling of 2121324341 in words is "two billion, one hundred twenty-one million, three hundred twenty-four thousand, three hundred forty-one".