31304350361 has 2 divisors, whose sum is σ = 31304350362. Its totient is φ = 31304350360.

The previous prime is 31304350291. The next prime is 31304350373. The reversal of 31304350361 is 16305340313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28893540361 + 2410810000 = 169981^2 + 49100^2 .

It is a cyclic number.

It is not a de Polignac number, because 31304350361 - 2¹⁰ = 31304349337 is a prime.

It is not a weakly prime, because it can be changed into another prime (31304350661) 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, 15652175180 + 15652175181.

It is an arithmetic number, because the mean of its divisors is an integer number (15652175181).

Almost surely, 2^31304350361 is an apocalyptic number.

It is an amenable number.

31304350361 is a deficient number, since it is larger than the sum of its proper divisors (1).

31304350361 is an equidigital number, since it uses as much as digits as its factorization.

31304350361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 31304350361 its reverse (16305340313), we get a palindrome (47609690674).

The spelling of 31304350361 in words is "thirty-one billion, three hundred four million, three hundred fifty thousand, three hundred sixty-one".