12404002403 has 4 divisors (see below), whose sum is σ = 13358156448. Its totient is φ = 11449848360.

The previous prime is 12404002397. The next prime is 12404002423. The reversal of 12404002403 is 30420040421.

12404002403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30420040421 = 19 ⋅1601054759.

It is a cyclic number.

It is not a de Polignac number, because 12404002403 - 2¹⁸ = 12403740259 is a prime.

It is a super-2 number, since 2×12404002403² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12404002423) 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 3 ways as a sum of consecutive naturals, for example, 477077003 + ... + 477077028.

It is an arithmetic number, because the mean of its divisors is an integer number (3339539112).

Almost surely, 2^12404002403 is an apocalyptic number.

12404002403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12404002403 is a deficient number, since it is larger than the sum of its proper divisors (954154045).

12404002403 is an equidigital number, since it uses as much as digits as its factorization.

12404002403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954154044.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12404002403 its reverse (30420040421), we get a palindrome (42824042824).

The spelling of 12404002403 in words is "twelve billion, four hundred four million, two thousand, four hundred three".