31713143535349 has 2 divisors, whose sum is σ = 31713143535350. Its totient is φ = 31713143535348.

The previous prime is 31713143535263. The next prime is 31713143535371. The reversal of 31713143535349 is 94353534131713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18940060672324 + 12773082863025 = 4352018^2 + 3573945^2 .

It is an emirp because it is prime and its reverse (94353534131713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31713143535349 - 2¹¹ = 31713143533301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31713143535296 and 31713143535305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31713143535389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15856571767674 + 15856571767675.

It is an arithmetic number, because the mean of its divisors is an integer number (15856571767675).

Almost surely, 2^{31713143535349} is an apocalyptic number.

It is an amenable number.

31713143535349 is a deficient number, since it is larger than the sum of its proper divisors (1).

31713143535349 is an equidigital number, since it uses as much as digits as its factorization.

31713143535349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6123600, while the sum is 52.

The spelling of 31713143535349 in words is "thirty-one trillion, seven hundred thirteen billion, one hundred forty-three million, five hundred thirty-five thousand, three hundred forty-nine".