13133221349 has 2 divisors, whose sum is σ = 13133221350. Its totient is φ = 13133221348.

The previous prime is 13133221307. The next prime is 13133221369. The reversal of 13133221349 is 94312233131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9405508324 + 3727713025 = 96982^2 + 61055^2 .

It is a cyclic number.

It is not a de Polignac number, because 13133221349 - 2⁸ = 13133221093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13133221369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6566610674 + 6566610675.

It is an arithmetic number, because the mean of its divisors is an integer number (6566610675).

Almost surely, 2^13133221349 is an apocalyptic number.

It is an amenable number.

13133221349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13133221349 is an equidigital number, since it uses as much as digits as its factorization.

13133221349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 32.

The spelling of 13133221349 in words is "thirteen billion, one hundred thirty-three million, two hundred twenty-one thousand, three hundred forty-nine".