13212639073 has 2 divisors, whose sum is σ = 13212639074. Its totient is φ = 13212639072.

The previous prime is 13212639019. The next prime is 13212639113. The reversal of 13212639073 is 37093621231.

It is a happy number.

13212639073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10163059344 + 3049579729 = 100812^2 + 55223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13212639073 is a prime.

It is not a weakly prime, because it can be changed into another prime (13212631073) 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, 6606319536 + 6606319537.

It is an arithmetic number, because the mean of its divisors is an integer number (6606319537).

Almost surely, 2^13212639073 is an apocalyptic number.

It is an amenable number.

13212639073 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212639073 is an equidigital number, since it uses as much as digits as its factorization.

13212639073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 37.

The spelling of 13212639073 in words is "thirteen billion, two hundred twelve million, six hundred thirty-nine thousand, seventy-three".