12400122003 has 8 divisors (see below), whose sum is σ = 16561664448. Its totient is φ = 8252663784.

The previous prime is 12400121999. The next prime is 12400122011. The reversal of 12400122003 is 30022100421.

12400122003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12400122003 - 2² = 12400121999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12400122073) 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 in 7 ways as a sum of consecutive naturals, for example, 3519001 + ... + 3522522.

It is an arithmetic number, because the mean of its divisors is an integer number (2070208056).

Almost surely, 2^12400122003 is an apocalyptic number.

12400122003 is a deficient number, since it is larger than the sum of its proper divisors (4161542445).

12400122003 is an equidigital number, since it uses as much as digits as its factorization.

12400122003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7042113.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12400122003 its reverse (30022100421), we get a palindrome (42422222424).

The spelling of 12400122003 in words is "twelve billion, four hundred million, one hundred twenty-two thousand, three".