12403019 has 2 divisors, whose sum is σ = 12403020. Its totient is φ = 12403018.

The previous prime is 12403009. The next prime is 12403031. The reversal of 12403019 is 91030421.

12403019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12403019 - 2¹⁶ = 12337483 is a prime.

It is a super-2 number, since 2×12403019² = 307669760628722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12403009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201509 + 6201510.

It is an arithmetic number, because the mean of its divisors is an integer number (6201510).

Almost surely, 2^12403019 is an apocalyptic number.

12403019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12403019 is an equidigital number, since it uses as much as digits as its factorization.

12403019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12403019 is about 3521.7920154376. The cubic root of 12403019 is about 231.4776881874.

The spelling of 12403019 in words is "twelve million, four hundred three thousand, nineteen".