12030111 has 12 divisors (see below), whose sum is σ = 17495400. Its totient is φ = 7965360.

The previous prime is 12030089. The next prime is 12030119. The reversal of 12030111 is 11103021.

It is not a de Polignac number, because 12030111 - 2⁵ = 12030079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12030093 and 12030102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3145 + ... + 5826.

It is an arithmetic number, because the mean of its divisors is an integer number (1457950).

Almost surely, 2^12030111 is an apocalyptic number.

12030111 is a deficient number, since it is larger than the sum of its proper divisors (5465289).

12030111 is a wasteful number, since it uses less digits than its factorization.

12030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9126 (or 9123 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 12030111 is about 3468.4450406486. The cubic root of 12030111 is about 229.1341801810.

Adding to 12030111 its reverse (11103021), we get a palindrome (23133132).

The spelling of 12030111 in words is "twelve million, thirty thousand, one hundred eleven".