31114405393 has 2 divisors, whose sum is σ = 31114405394. Its totient is φ = 31114405392.

The previous prime is 31114405391. The next prime is 31114405403. The reversal of 31114405393 is 39350441113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27029661649 + 4084743744 = 164407^2 + 63912^2 .

It is an emirp because it is prime and its reverse (39350441113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31114405393 - 2¹ = 31114405391 is a prime.

Together with 31114405391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31114405391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15557202696 + 15557202697.

It is an arithmetic number, because the mean of its divisors is an integer number (15557202697).

Almost surely, 2^31114405393 is an apocalyptic number.

It is an amenable number.

31114405393 is a deficient number, since it is larger than the sum of its proper divisors (1).

31114405393 is an equidigital number, since it uses as much as digits as its factorization.

31114405393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 31114405393 in words is "thirty-one billion, one hundred fourteen million, four hundred five thousand, three hundred ninety-three".