5031331321 has 2 divisors, whose sum is σ = 5031331322. Its totient is φ = 5031331320.

The previous prime is 5031331241. The next prime is 5031331363. The reversal of 5031331321 is 1231331305.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2773180921 + 2258150400 = 52661^2 + 47520^2 .

It is a cyclic number.

It is not a de Polignac number, because 5031331321 - 2¹⁷ = 5031200249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5031331292 and 5031331301.

It is not a weakly prime, because it can be changed into another prime (5031331021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515665660 + 2515665661.

It is an arithmetic number, because the mean of its divisors is an integer number (2515665661).

Almost surely, 2^5031331321 is an apocalyptic number.

It is an amenable number.

5031331321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5031331321 is an equidigital number, since it uses as much as digits as its factorization.

5031331321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 5031331321 is about 70931.8780309671. The cubic root of 5031331321 is about 1713.5402324452.

Adding to 5031331321 its reverse (1231331305), we get a palindrome (6262662626).

The spelling of 5031331321 in words is "five billion, thirty-one million, three hundred thirty-one thousand, three hundred twenty-one".