31343346113 has 2 divisors, whose sum is σ = 31343346114. Its totient is φ = 31343346112.

The previous prime is 31343346061. The next prime is 31343346157. The reversal of 31343346113 is 31164334313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25474713664 + 5868632449 = 159608^2 + 76607^2 .

It is a cyclic number.

It is not a de Polignac number, because 31343346113 - 2³⁰ = 30269604289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31343346113.

It is not a weakly prime, because it can be changed into another prime (31343343113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671673056 + 15671673057.

It is an arithmetic number, because the mean of its divisors is an integer number (15671673057).

Almost surely, 2^31343346113 is an apocalyptic number.

It is an amenable number.

31343346113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31343346113 is an equidigital number, since it uses as much as digits as its factorization.

31343346113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 32.

The spelling of 31343346113 in words is "thirty-one billion, three hundred forty-three million, three hundred forty-six thousand, one hundred thirteen".