12131102239 has 2 divisors, whose sum is σ = 12131102240. Its totient is φ = 12131102238.

The previous prime is 12131102227. The next prime is 12131102293. The reversal of 12131102239 is 93220113121.

Together with next prime (12131102293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (93220113121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12131102239 - 2¹³ = 12131094047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12131102299) 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, 6065551119 + 6065551120.

It is an arithmetic number, because the mean of its divisors is an integer number (6065551120).

Almost surely, 2^12131102239 is an apocalyptic number.

12131102239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131102239 is an equidigital number, since it uses as much as digits as its factorization.

12131102239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 12131102239 in words is "twelve billion, one hundred thirty-one million, one hundred two thousand, two hundred thirty-nine".