12001232000 has 64 divisors (see below), whose sum is σ = 29838102840. Its totient is φ = 4800486400.

The previous prime is 12001231997. The next prime is 12001232003. The reversal of 12001232000 is 23210021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12001231997) and next prime (12001232003).

It can be written as a sum of positive squares in 4 ways, for example, as 7969489984 + 4031742016 = 89272^2 + 63496^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (12001232003) 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, 359039 + ... + 391038.

Almost surely, 2^12001232000 is an apocalyptic number.

12001232000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001232000 is an abundant number, since it is smaller than the sum of its proper divisors (17836870840).

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

12001232000 is an frugal number, since it uses more digits than its factorization.

12001232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750106 (or 750084 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12001232000 its reverse (23210021), we get a palindrome (12024442021).

The spelling of 12001232000 in words is "twelve billion, one million, two hundred thirty-two thousand".