12440140023 has 8 divisors (see below), whose sum is σ = 16603834608. Its totient is φ = 8284936064.

The previous prime is 12440140001. The next prime is 12440140049. The reversal of 12440140023 is 32004104421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12440140023 - 2⁵ = 12440139991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440140523) 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 in 7 ways as a sum of consecutive naturals, for example, 2119236 + ... + 2125097.

It is an arithmetic number, because the mean of its divisors is an integer number (2075479326).

Almost surely, 2^12440140023 is an apocalyptic number.

12440140023 is a deficient number, since it is larger than the sum of its proper divisors (4163694585).

12440140023 is an equidigital number, since it uses as much as digits as its factorization.

12440140023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245313.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12440140023 its reverse (32004104421), we get a palindrome (44444244444).

The spelling of 12440140023 in words is "twelve billion, four hundred forty million, one hundred forty thousand, twenty-three".