13220320049 has 2 divisors, whose sum is σ = 13220320050. Its totient is φ = 13220320048.

The previous prime is 13220320019. The next prime is 13220320063. The reversal of 13220320049 is 94002302231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9381278449 + 3839041600 = 96857^2 + 61960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220320049 is a prime.

It is not a weakly prime, because it can be changed into another prime (13220320019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610160024 + 6610160025.

It is an arithmetic number, because the mean of its divisors is an integer number (6610160025).

Almost surely, 2^13220320049 is an apocalyptic number.

It is an amenable number.

13220320049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220320049 is an equidigital number, since it uses as much as digits as its factorization.

13220320049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 13220320049 in words is "thirteen billion, two hundred twenty million, three hundred twenty thousand, forty-nine".