13521063349 has 2 divisors, whose sum is σ = 13521063350. Its totient is φ = 13521063348.

The previous prime is 13521063313. The next prime is 13521063403. The reversal of 13521063349 is 94336012531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13450200625 + 70862724 = 115975^2 + 8418^2 .

It is a cyclic number.

It is not a de Polignac number, because 13521063349 - 2⁹ = 13521062837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13521060349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760531674 + 6760531675.

It is an arithmetic number, because the mean of its divisors is an integer number (6760531675).

Almost surely, 2^13521063349 is an apocalyptic number.

It is an amenable number.

13521063349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13521063349 is an equidigital number, since it uses as much as digits as its factorization.

13521063349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 13521063349 in words is "thirteen billion, five hundred twenty-one million, sixty-three thousand, three hundred forty-nine".