12440131007 has 2 divisors, whose sum is σ = 12440131008. Its totient is φ = 12440131006.

The previous prime is 12440131001. The next prime is 12440131063. The reversal of 12440131007 is 70013104421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12440131007 - 2⁴ = 12440130991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12440131001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220065503 + 6220065504.

It is an arithmetic number, because the mean of its divisors is an integer number (6220065504).

Almost surely, 2^12440131007 is an apocalyptic number.

12440131007 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440131007 is an equidigital number, since it uses as much as digits as its factorization.

12440131007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 12440131007 its reverse (70013104421), we get a palindrome (82453235428).

The spelling of 12440131007 in words is "twelve billion, four hundred forty million, one hundred thirty-one thousand, seven".