13121213022347 has 2 divisors, whose sum is σ = 13121213022348. Its totient is φ = 13121213022346.

The previous prime is 13121213022301. The next prime is 13121213022377. The reversal of 13121213022347 is 74322031212131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13121213022347 - 2¹⁸ = 13121212760203 is a prime.

It is not a weakly prime, because it can be changed into another prime (13121213022377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560606511173 + 6560606511174.

It is an arithmetic number, because the mean of its divisors is an integer number (6560606511174).

Almost surely, 2^{13121213022347} is an apocalyptic number.

13121213022347 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121213022347 is an equidigital number, since it uses as much as digits as its factorization.

13121213022347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 13121213022347 its reverse (74322031212131), we get a palindrome (87443244234478).

The spelling of 13121213022347 in words is "thirteen trillion, one hundred twenty-one billion, two hundred thirteen million, twenty-two thousand, three hundred forty-seven".