5309219381321 has 4 divisors (see below), whose sum is σ = 5309252791572. Its totient is φ = 5309185971072.

The previous prime is 5309219381311. The next prime is 5309219381329. The reversal of 5309219381321 is 1231839129035.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 798183214921 + 4511036166400 = 893411^2 + 2123920^2 .

It is a cyclic number.

It is not a de Polignac number, because 5309219381321 - 2¹⁴ = 5309219364937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5309219381329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16465616 + ... + 16784961.

It is an arithmetic number, because the mean of its divisors is an integer number (1327313197893).

Almost surely, 2^{5309219381321} is an apocalyptic number.

It is an amenable number.

5309219381321 is a deficient number, since it is larger than the sum of its proper divisors (33410251).

5309219381321 is a wasteful number, since it uses less digits than its factorization.

5309219381321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33410250.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 5309219381321 in words is "five trillion, three hundred nine billion, two hundred nineteen million, three hundred eighty-one thousand, three hundred twenty-one".