12784021307 has 2 divisors, whose sum is σ = 12784021308. Its totient is φ = 12784021306.

The previous prime is 12784021249. The next prime is 12784021337. The reversal of 12784021307 is 70312048721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12784021307 - 2²⁰ = 12782972731 is a prime.

It is not a weakly prime, because it can be changed into another prime (12784021337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6392010653 + 6392010654.

It is an arithmetic number, because the mean of its divisors is an integer number (6392010654).

Almost surely, 2^12784021307 is an apocalyptic number.

12784021307 is a deficient number, since it is larger than the sum of its proper divisors (1).

12784021307 is an equidigital number, since it uses as much as digits as its factorization.

12784021307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 35.

The spelling of 12784021307 in words is "twelve billion, seven hundred eighty-four million, twenty-one thousand, three hundred seven".