5382121321 has 2 divisors, whose sum is σ = 5382121322. Its totient is φ = 5382121320.

The previous prime is 5382121313. The next prime is 5382121331. The reversal of 5382121321 is 1231212835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5243352921 + 138768400 = 72411^2 + 11780^2 .

It is a cyclic number.

It is not a de Polignac number, because 5382121321 - 2³ = 5382121313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5382121321.

It is not a weakly prime, because it can be changed into another prime (5382121331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2691060660 + 2691060661.

It is an arithmetic number, because the mean of its divisors is an integer number (2691060661).

Almost surely, 2^5382121321 is an apocalyptic number.

It is an amenable number.

5382121321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5382121321 is an equidigital number, since it uses as much as digits as its factorization.

5382121321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 5382121321 is about 73362.9424232698. The cubic root of 5382121321 is about 1752.4722956841.

The spelling of 5382121321 in words is "five billion, three hundred eighty-two million, one hundred twenty-one thousand, three hundred twenty-one".