31342717009 has 2 divisors, whose sum is σ = 31342717010. Its totient is φ = 31342717008.

The previous prime is 31342716971. The next prime is 31342717037. The reversal of 31342717009 is 90071724313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30560284225 + 782432784 = 174815^2 + 27972^2 .

It is a cyclic number.

It is not a de Polignac number, because 31342717009 - 2²¹ = 31340619857 is a prime.

It is a super-3 number, since 3×31342717009³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (31342717069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671358504 + 15671358505.

It is an arithmetic number, because the mean of its divisors is an integer number (15671358505).

Almost surely, 2^31342717009 is an apocalyptic number.

It is an amenable number.

31342717009 is a deficient number, since it is larger than the sum of its proper divisors (1).

31342717009 is an equidigital number, since it uses as much as digits as its factorization.

31342717009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 31342717009 in words is "thirty-one billion, three hundred forty-two million, seven hundred seventeen thousand, nine".