12132111 has 8 divisors (see below), whose sum is σ = 16450560. Its totient is φ = 7950872.

The previous prime is 12132103. The next prime is 12132151. The reversal of 12132111 is 11123121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12132111 - 2³ = 12132103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34095 + ... + 34448.

It is an arithmetic number, because the mean of its divisors is an integer number (2056320).

Almost surely, 2^12132111 is an apocalyptic number.

12132111 is a deficient number, since it is larger than the sum of its proper divisors (4318449).

12132111 is an equidigital number, since it uses as much as digits as its factorization.

12132111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68605.

The product of its digits is 12, while the sum is 12.

The square root of 12132111 is about 3483.1179997238. The cubic root of 12132111 is about 229.7799470610.

Adding to 12132111 its reverse (11123121), we get a palindrome (23255232).

The spelling of 12132111 in words is "twelve million, one hundred thirty-two thousand, one hundred eleven".