12000320999 has 8 divisors (see below), whose sum is σ = 12408549888. Its totient is φ = 11593412280.

The previous prime is 12000320993. The next prime is 12000321083. The reversal of 12000320999 is 99902300021.

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 12000320999 - 2⁸ = 12000320743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000320993) 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, 311537 + ... + 347930.

It is an arithmetic number, because the mean of its divisors is an integer number (1551068736).

Almost surely, 2^12000320999 is an apocalyptic number.

12000320999 is a deficient number, since it is larger than the sum of its proper divisors (408228889).

12000320999 is an equidigital number, since it uses as much as digits as its factorization.

12000320999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660085.

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 12000320999 in words is "twelve billion, three hundred twenty thousand, nine hundred ninety-nine".