12440131006 has 4 divisors (see below), whose sum is σ = 18660196512. Its totient is φ = 6220065502.

The previous prime is 12440131001. The next prime is 12440131007. The reversal of 12440131006 is 60013104421.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440131001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110032750 + ... + 3110032753.

It is an arithmetic number, because the mean of its divisors is an integer number (4665049128).

Almost surely, 2^12440131006 is an apocalyptic number.

12440131006 is a deficient number, since it is larger than the sum of its proper divisors (6220065506).

12440131006 is an equidigital number, since it uses as much as digits as its factorization.

12440131006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220065505.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12440131006 its reverse (60013104421), we get a palindrome (72453235427).

The spelling of 12440131006 in words is "twelve billion, four hundred forty million, one hundred thirty-one thousand, six".