12240213131 has 2 divisors, whose sum is σ = 12240213132. Its totient is φ = 12240213130.

The previous prime is 12240213043. The next prime is 12240213133. The reversal of 12240213131 is 13131204221.

12240213131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12240213131 - 2¹⁰ = 12240212107 is a prime.

It is a super-2 number, since 2×12240213131² (a number of 21 digits) contains 22 as substring.

Together with 12240213133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12240213133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120106565 + 6120106566.

It is an arithmetic number, because the mean of its divisors is an integer number (6120106566).

Almost surely, 2^12240213131 is an apocalyptic number.

12240213131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240213131 is an equidigital number, since it uses as much as digits as its factorization.

12240213131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12240213131 its reverse (13131204221), we get a palindrome (25371417352).

The spelling of 12240213131 in words is "twelve billion, two hundred forty million, two hundred thirteen thousand, one hundred thirty-one".