31313310330149 has 2 divisors, whose sum is σ = 31313310330150. Its totient is φ = 31313310330148.

The previous prime is 31313310330109. The next prime is 31313310330233. The reversal of 31313310330149 is 94103301331313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24007236479524 + 7306073850625 = 4899718^2 + 2702975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31313310330149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31313310330109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656655165074 + 15656655165075.

It is an arithmetic number, because the mean of its divisors is an integer number (15656655165075).

Almost surely, 2^{31313310330149} is an apocalyptic number.

It is an amenable number.

31313310330149 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313310330149 is an equidigital number, since it uses as much as digits as its factorization.

31313310330149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 35.

The spelling of 31313310330149 in words is "thirty-one trillion, three hundred thirteen billion, three hundred ten million, three hundred thirty thousand, one hundred forty-nine".