12001200321 has 8 divisors (see below), whose sum is σ = 17456291424. Its totient is φ = 7273454720.

The previous prime is 12001200317. The next prime is 12001200349. The reversal of 12001200321 is 12300210021.

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

It is a cyclic number.

It is not a de Polignac number, because 12001200321 - 2² = 12001200317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001200297 and 12001200306.

It is not an unprimeable number, because it can be changed into a prime (12001200311) 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, 181836336 + ... + 181836401.

It is an arithmetic number, because the mean of its divisors is an integer number (2182036428).

Almost surely, 2^12001200321 is an apocalyptic number.

12001200321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12001200321 is a deficient number, since it is larger than the sum of its proper divisors (5455091103).

12001200321 is a wasteful number, since it uses less digits than its factorization.

12001200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363672751.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12001200321 its reverse (12300210021), we get a palindrome (24301410342).

The spelling of 12001200321 in words is "twelve billion, one million, two hundred thousand, three hundred twenty-one".