12139828891 has 2 divisors, whose sum is σ = 12139828892. Its totient is φ = 12139828890.

The previous prime is 12139828853. The next prime is 12139828903. The reversal of 12139828891 is 19882893121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12139828891 - 2¹³ = 12139820699 is a prime.

It is not a weakly prime, because it can be changed into another prime (12139828291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069914445 + 6069914446.

It is an arithmetic number, because the mean of its divisors is an integer number (6069914446).

Almost surely, 2^12139828891 is an apocalyptic number.

12139828891 is a deficient number, since it is larger than the sum of its proper divisors (1).

12139828891 is an equidigital number, since it uses as much as digits as its factorization.

12139828891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 52.

The spelling of 12139828891 in words is "twelve billion, one hundred thirty-nine million, eight hundred twenty-eight thousand, eight hundred ninety-one".