12133830 has 16 divisors (see below), whose sum is σ = 29121264. Its totient is φ = 3235680.

The previous prime is 12133819. The next prime is 12133843. The reversal of 12133830 is 3833121.

It is a happy number.

12133830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12133797 and 12133806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202201 + ... + 202260.

It is an arithmetic number, because the mean of its divisors is an integer number (1820079).

Almost surely, 2^12133830 is an apocalyptic number.

12133830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12133830 is an abundant number, since it is smaller than the sum of its proper divisors (16987434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12133830 is a wasteful number, since it uses less digits than its factorization.

12133830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404471.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12133830 is about 3483.3647526494. The cubic root of 12133830 is about 229.7907990629.

Adding to 12133830 its reverse (3833121), we get a palindrome (15966951).

The spelling of 12133830 in words is "twelve million, one hundred thirty-three thousand, eight hundred thirty".