31320414113 has 2 divisors, whose sum is σ = 31320414114. Its totient is φ = 31320414112.

The previous prime is 31320414079. The next prime is 31320414119. The reversal of 31320414113 is 31141402313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28433716129 + 2886697984 = 168623^2 + 53728^2 .

It is a cyclic number.

It is not a de Polignac number, because 31320414113 - 2⁸ = 31320413857 is a prime.

It is not a weakly prime, because it can be changed into another prime (31320414119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660207056 + 15660207057.

It is an arithmetic number, because the mean of its divisors is an integer number (15660207057).

Almost surely, 2^31320414113 is an apocalyptic number.

It is an amenable number.

31320414113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31320414113 is an equidigital number, since it uses as much as digits as its factorization.

31320414113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31320414113 its reverse (31141402313), we get a palindrome (62461816426).

The spelling of 31320414113 in words is "thirty-one billion, three hundred twenty million, four hundred fourteen thousand, one hundred thirteen".