31302342013 has 2 divisors, whose sum is σ = 31302342014. Its totient is φ = 31302342012.

The previous prime is 31302342011. The next prime is 31302342061. The reversal of 31302342013 is 31024320313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31245158169 + 57183844 = 176763^2 + 7562^2 .

It is a cyclic number.

It is not a de Polignac number, because 31302342013 - 2¹ = 31302342011 is a prime.

Together with 31302342011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31302342011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651171006 + 15651171007.

It is an arithmetic number, because the mean of its divisors is an integer number (15651171007).

Almost surely, 2^31302342013 is an apocalyptic number.

It is an amenable number.

31302342013 is a deficient number, since it is larger than the sum of its proper divisors (1).

31302342013 is an equidigital number, since it uses as much as digits as its factorization.

31302342013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31302342013 its reverse (31024320313), we get a palindrome (62326662326).

The spelling of 31302342013 in words is "thirty-one billion, three hundred two million, three hundred forty-two thousand, thirteen".