31303030023313 has 2 divisors, whose sum is σ = 31303030023314. Its totient is φ = 31303030023312.

The previous prime is 31303030023227. The next prime is 31303030023319. The reversal of 31303030023313 is 31332003030313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30710350222864 + 592679800449 = 5541692^2 + 769857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31303030023313 is a prime.

It is not a weakly prime, because it can be changed into another prime (31303030023319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651515011656 + 15651515011657.

It is an arithmetic number, because the mean of its divisors is an integer number (15651515011657).

Almost surely, 2^{31303030023313} is an apocalyptic number.

It is an amenable number.

31303030023313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31303030023313 is an equidigital number, since it uses as much as digits as its factorization.

31303030023313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 25.

Adding to 31303030023313 its reverse (31332003030313), we get a palindrome (62635033053626).

The spelling of 31303030023313 in words is "thirty-one trillion, three hundred three billion, thirty million, twenty-three thousand, three hundred thirteen".