12011233 has 8 divisors (see below), whose sum is σ = 13236608. Its totient is φ = 10828944.

The previous prime is 12011227. The next prime is 12011243. The reversal of 12011233 is 33211021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10185 + ... + 11302.

It is an arithmetic number, because the mean of its divisors is an integer number (1654576).

Almost surely, 2^12011233 is an apocalyptic number.

12011233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12011233 is a deficient number, since it is larger than the sum of its proper divisors (1225375).

12011233 is a wasteful number, since it uses less digits than its factorization.

12011233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21543.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12011233 is about 3465.7225797804. The cubic root of 12011233 is about 229.0142627603.

Adding to 12011233 its reverse (33211021), we get a palindrome (45222254).

The spelling of 12011233 in words is "twelve million, eleven thousand, two hundred thirty-three".