12400240302403 has 8 divisors (see below), whose sum is σ = 12414809266416. Its totient is φ = 12385674604800.

The previous prime is 12400240302371. The next prime is 12400240302419. The reversal of 12400240302403 is 30420304200421.

It is a happy number.

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 12400240302403 - 2⁵ = 12400240302371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400240302803) 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, 6822363 + ... + 8446603.

It is an arithmetic number, because the mean of its divisors is an integer number (1551851158302).

Almost surely, 2^{12400240302403} is an apocalyptic number.

12400240302403 is a deficient number, since it is larger than the sum of its proper divisors (14568964013).

12400240302403 is an equidigital number, since it uses as much as digits as its factorization.

12400240302403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633205.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 12400240302403 its reverse (30420304200421), we get a palindrome (42820544502824).

The spelling of 12400240302403 in words is "twelve trillion, four hundred billion, two hundred forty million, three hundred two thousand, four hundred three".