13123213223347 has 2 divisors, whose sum is σ = 13123213223348. Its totient is φ = 13123213223346.

The previous prime is 13123213223269. The next prime is 13123213223359. The reversal of 13123213223347 is 74332231232131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13123213223347 - 2¹¹ = 13123213221299 is a prime.

It is a super-3 number, since 3×13123213223347³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13123213223387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561606611673 + 6561606611674.

It is an arithmetic number, because the mean of its divisors is an integer number (6561606611674).

Almost surely, 2^{13123213223347} is an apocalyptic number.

13123213223347 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123213223347 is an equidigital number, since it uses as much as digits as its factorization.

13123213223347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 37.

Adding to 13123213223347 its reverse (74332231232131), we get a palindrome (87455444455478).

The spelling of 13123213223347 in words is "thirteen trillion, one hundred twenty-three billion, two hundred thirteen million, two hundred twenty-three thousand, three hundred forty-seven".