31201313141 has 2 divisors, whose sum is σ = 31201313142. Its totient is φ = 31201313140.

The previous prime is 31201313123. The next prime is 31201313233. The reversal of 31201313141 is 14131310213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30300713041 + 900600100 = 174071^2 + 30010^2 .

It is an emirp because it is prime and its reverse (14131310213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31201313141 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31201313441) 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, 15600656570 + 15600656571.

It is an arithmetic number, because the mean of its divisors is an integer number (15600656571).

Almost surely, 2^31201313141 is an apocalyptic number.

It is an amenable number.

31201313141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31201313141 is an equidigital number, since it uses as much as digits as its factorization.

31201313141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31201313141 its reverse (14131310213), we get a palindrome (45332623354).

The spelling of 31201313141 in words is "thirty-one billion, two hundred one million, three hundred thirteen thousand, one hundred forty-one".