5021432321 has 2 divisors, whose sum is σ = 5021432322. Its totient is φ = 5021432320.

The previous prime is 5021432257. The next prime is 5021432323. The reversal of 5021432321 is 1232341205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5003581696 + 17850625 = 70736^2 + 4225^2 .

It is a cyclic number.

It is not a de Polignac number, because 5021432321 - 2⁶ = 5021432257 is a prime.

Together with 5021432323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5021432323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510716160 + 2510716161.

It is an arithmetic number, because the mean of its divisors is an integer number (2510716161).

Almost surely, 2^5021432321 is an apocalyptic number.

It is an amenable number.

5021432321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5021432321 is an equidigital number, since it uses as much as digits as its factorization.

5021432321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 5021432321 is about 70862.0654581843. The cubic root of 5021432321 is about 1712.4157142242.

Adding to 5021432321 its reverse (1232341205), we get a palindrome (6253773526).

The spelling of 5021432321 in words is "five billion, twenty-one million, four hundred thirty-two thousand, three hundred twenty-one".