31301222110013 has 2 divisors, whose sum is σ = 31301222110014. Its totient is φ = 31301222110012.

The previous prime is 31301222110007. The next prime is 31301222110057. The reversal of 31301222110013 is 31001122210313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29149611325444 + 2151610784569 = 5399038^2 + 1466837^2 .

It is a cyclic number.

It is not a de Polignac number, because 31301222110013 - 2⁸ = 31301222109757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31301522110013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650611055006 + 15650611055007.

It is an arithmetic number, because the mean of its divisors is an integer number (15650611055007).

Almost surely, 2^{31301222110013} is an apocalyptic number.

It is an amenable number.

31301222110013 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301222110013 is an equidigital number, since it uses as much as digits as its factorization.

31301222110013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31301222110013 its reverse (31001122210313), we get a palindrome (62302344320326).

The spelling of 31301222110013 in words is "thirty-one trillion, three hundred one billion, two hundred twenty-two million, one hundred ten thousand, thirteen".