12011233000 has 128 divisors (see below), whose sum is σ = 30973662720. Its totient is φ = 4331577600.

The previous prime is 12011232977. The next prime is 12011233009. The reversal of 12011233000 is 33211021.

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

It is not an unprimeable number, because it can be changed into a prime (12011233009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548257 + ... + 569743.

It is an arithmetic number, because the mean of its divisors is an integer number (241981740).

Almost surely, 2^12011233000 is an apocalyptic number.

12011233000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011233000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15486831360).

12011233000 is an abundant number, since it is smaller than the sum of its proper divisors (18962429720).

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

12011233000 is a wasteful number, since it uses less digits than its factorization.

12011233000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21564 (or 21550 counting only the distinct ones).

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

Adding to 12011233000 its reverse (33211021), we get a palindrome (12044444021).

The spelling of 12011233000 in words is "twelve billion, eleven million, two hundred thirty-three thousand".