31313213341 has 2 divisors, whose sum is σ = 31313213342. Its totient is φ = 31313213340.

The previous prime is 31313213299. The next prime is 31313213389. The reversal of 31313213341 is 14331231313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28915642116 + 2397571225 = 170046^2 + 48965^2 .

It is a cyclic number.

It is not a de Polignac number, because 31313213341 - 2¹⁵ = 31313180573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31313211341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656606670 + 15656606671.

It is an arithmetic number, because the mean of its divisors is an integer number (15656606671).

Almost surely, 2^31313213341 is an apocalyptic number.

It is an amenable number.

31313213341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313213341 is an equidigital number, since it uses as much as digits as its factorization.

31313213341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

Adding to 31313213341 its reverse (14331231313), we get a palindrome (45644444654).

The spelling of 31313213341 in words is "thirty-one billion, three hundred thirteen million, two hundred thirteen thousand, three hundred forty-one".