12132123 has 4 divisors (see below), whose sum is σ = 16176168. Its totient is φ = 8088080.

The previous prime is 12132103. The next prime is 12132151. The reversal of 12132123 is 32123121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32123121 = 3 ⋅10707707.

It is a cyclic number.

It is not a de Polignac number, because 12132123 - 2⁵ = 12132091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12132103) 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, 2022018 + ... + 2022023.

It is an arithmetic number, because the mean of its divisors is an integer number (4044042).

Almost surely, 2^12132123 is an apocalyptic number.

12132123 is a deficient number, since it is larger than the sum of its proper divisors (4044045).

12132123 is an equidigital number, since it uses as much as digits as its factorization.

12132123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044044.

The product of its digits is 72, while the sum is 15.

The square root of 12132123 is about 3483.1197223179. The cubic root of 12132123 is about 229.7800228202.

Adding to 12132123 its reverse (32123121), we get a palindrome (44255244).

It can be divided in two parts, 121 and 32123, that multiplied together give a palindrome (3886883).

The spelling of 12132123 in words is "twelve million, one hundred thirty-two thousand, one hundred twenty-three".