13128811279 has 2 divisors, whose sum is σ = 13128811280. Its totient is φ = 13128811278.

The previous prime is 13128811231. The next prime is 13128811307. The reversal of 13128811279 is 97211882131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13128811279 - 2⁹ = 13128810767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13128811219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6564405639 + 6564405640.

It is an arithmetic number, because the mean of its divisors is an integer number (6564405640).

Almost surely, 2^13128811279 is an apocalyptic number.

13128811279 is a deficient number, since it is larger than the sum of its proper divisors (1).

13128811279 is an equidigital number, since it uses as much as digits as its factorization.

13128811279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 43.

The spelling of 13128811279 in words is "thirteen billion, one hundred twenty-eight million, eight hundred eleven thousand, two hundred seventy-nine".