12009012403 has 2 divisors, whose sum is σ = 12009012404. Its totient is φ = 12009012402.

The previous prime is 12009012371. The next prime is 12009012439. The reversal of 12009012403 is 30421090021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12009012403 - 2⁵ = 12009012371 is a prime.

It is not a weakly prime, because it can be changed into another prime (12009012443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004506201 + 6004506202.

It is an arithmetic number, because the mean of its divisors is an integer number (6004506202).

Almost surely, 2^12009012403 is an apocalyptic number.

12009012403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12009012403 is an equidigital number, since it uses as much as digits as its factorization.

12009012403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 12009012403 in words is "twelve billion, nine million, twelve thousand, four hundred three".