12030019 has 4 divisors (see below), whose sum is σ = 12109840. Its totient is φ = 11950200.

The previous prime is 12030017. The next prime is 12030043. The reversal of 12030019 is 91003021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91003021 = 6343 ⋅14347.

It is a cyclic number.

It is not a de Polignac number, because 12030019 - 2¹ = 12030017 is a prime.

It is a super-2 number, since 2×12030019² = 289442714280722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12029984 and 12030011.

It is not an unprimeable number, because it can be changed into a prime (12030017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39684 + ... + 39985.

It is an arithmetic number, because the mean of its divisors is an integer number (3027460).

Almost surely, 2^12030019 is an apocalyptic number.

12030019 is the 2003-rd hex number.

12030019 is a deficient number, since it is larger than the sum of its proper divisors (79821).

12030019 is an equidigital number, since it uses as much as digits as its factorization.

12030019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79820.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 12030019 is about 3468.4317781960. The cubic root of 12030019 is about 229.1335960800.

The spelling of 12030019 in words is "twelve million, thirty thousand, nineteen".