12820888387267 has 2 divisors, whose sum is σ = 12820888387268. Its totient is φ = 12820888387266.

The previous prime is 12820888387253. The next prime is 12820888387273. The reversal of 12820888387267 is 76278388802821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12820888387267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12820888387196 and 12820888387205.

It is not a weakly prime, because it can be changed into another prime (12820888387247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6410444193633 + 6410444193634.

It is an arithmetic number, because the mean of its divisors is an integer number (6410444193634).

Almost surely, 2^{12820888387267} is an apocalyptic number.

12820888387267 is a deficient number, since it is larger than the sum of its proper divisors (1).

12820888387267 is an equidigital number, since it uses as much as digits as its factorization.

12820888387267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 231211008, while the sum is 70.

The spelling of 12820888387267 in words is "twelve trillion, eight hundred twenty billion, eight hundred eighty-eight million, three hundred eighty-seven thousand, two hundred sixty-seven".