31302321053413 has 2 divisors, whose sum is σ = 31302321053414. Its totient is φ = 31302321053412.

The previous prime is 31302321053389. The next prime is 31302321053417. The reversal of 31302321053413 is 31435012320313.

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., 22068216173124 + 9234104880289 = 4697682^2 + 3038767^2 .

It is a cyclic number.

It is not a de Polignac number, because 31302321053413 - 2³³ = 31293731118821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31302321053417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651160526706 + 15651160526707.

It is an arithmetic number, because the mean of its divisors is an integer number (15651160526707).

Almost surely, 2^{31302321053413} is an apocalyptic number.

It is an amenable number.

31302321053413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31302321053413 is an equidigital number, since it uses as much as digits as its factorization.

31302321053413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 31302321053413 its reverse (31435012320313), we get a palindrome (62737333373726).

The spelling of 31302321053413 in words is "thirty-one trillion, three hundred two billion, three hundred twenty-one million, fifty-three thousand, four hundred thirteen".