13123222291 has 2 divisors, whose sum is σ = 13123222292. Its totient is φ = 13123222290.

The previous prime is 13123222261. The next prime is 13123222319. The reversal of 13123222291 is 19222232131.

13123222291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13123222319) can be obtained adding 13123222291 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13123222291 - 2⁹ = 13123221779 is a prime.

It is not a weakly prime, because it can be changed into another prime (13123222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561611145 + 6561611146.

It is an arithmetic number, because the mean of its divisors is an integer number (6561611146).

Almost surely, 2^13123222291 is an apocalyptic number.

13123222291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123222291 is an equidigital number, since it uses as much as digits as its factorization.

13123222291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The spelling of 13123222291 in words is "thirteen billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred ninety-one".