11830019 has 4 divisors (see below), whose sum is σ = 11839680. Its totient is φ = 11820360.

The previous prime is 11829997. The next prime is 11830043. The reversal of 11830019 is 91003811.

11830019 is digitally balanced in base 3, 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11830019 is a prime.

It is a super-2 number, since 2×11830019² = 279898699080722, 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 = 11829976 and 11830003.

It is not an unprimeable number, because it can be changed into a prime (11820019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2672 + ... + 5549.

It is an arithmetic number, because the mean of its divisors is an integer number (2959920).

Almost surely, 2^11830019 is an apocalyptic number.

11830019 is a deficient number, since it is larger than the sum of its proper divisors (9661).

11830019 is an equidigital number, since it uses as much as digits as its factorization.

11830019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 11830019 is about 3439.4794664309. The cubic root of 11830019 is about 227.8567056414.

The spelling of 11830019 in words is "eleven million, eight hundred thirty thousand, nineteen".