12030091 has 4 divisors (see below), whose sum is σ = 12146992. Its totient is φ = 11913192.

The previous prime is 12030089. The next prime is 12030119. The reversal of 12030091 is 19003021.

12030091 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: 19003021 = 19 ⋅1000159.

It is a cyclic number.

It is not a de Polignac number, because 12030091 - 2¹ = 12030089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12030061) 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, 58296 + ... + 58501.

It is an arithmetic number, because the mean of its divisors is an integer number (3036748).

Almost surely, 2^12030091 is an apocalyptic number.

12030091 is a deficient number, since it is larger than the sum of its proper divisors (116901).

12030091 is a wasteful number, since it uses less digits than its factorization.

12030091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116900.

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

The square root of 12030091 is about 3468.4421575111. The cubic root of 12030091 is about 229.1340532028.

The spelling of 12030091 in words is "twelve million, thirty thousand, ninety-one".