13128249527 has 2 divisors, whose sum is σ = 13128249528. Its totient is φ = 13128249526.

The previous prime is 13128249517. The next prime is 13128249529. The reversal of 13128249527 is 72594282131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13128249527 - 2⁸ = 13128249271 is a prime.

Together with 13128249529, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13128249529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6564124763 + 6564124764.

It is an arithmetic number, because the mean of its divisors is an integer number (6564124764).

Almost surely, 2^13128249527 is an apocalyptic number.

13128249527 is a deficient number, since it is larger than the sum of its proper divisors (1).

13128249527 is an equidigital number, since it uses as much as digits as its factorization.

13128249527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The spelling of 13128249527 in words is "thirteen billion, one hundred twenty-eight million, two hundred forty-nine thousand, five hundred twenty-seven".