12131200469 has 2 divisors, whose sum is σ = 12131200470. Its totient is φ = 12131200468.

The previous prime is 12131200441. The next prime is 12131200483. The reversal of 12131200469 is 96400213121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10642398244 + 1488802225 = 103162^2 + 38585^2 .

It is an emirp because it is prime and its reverse (96400213121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12131200469 - 2¹² = 12131196373 is a prime.

It is a super-2 number, since 2×12131200469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12131200439) 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, 6065600234 + 6065600235.

It is an arithmetic number, because the mean of its divisors is an integer number (6065600235).

Almost surely, 2^12131200469 is an apocalyptic number.

It is an amenable number.

12131200469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131200469 is an equidigital number, since it uses as much as digits as its factorization.

12131200469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 12131200469 in words is "twelve billion, one hundred thirty-one million, two hundred thousand, four hundred sixty-nine".