12321002999 has 4 divisors (see below), whose sum is σ = 12489783936. Its totient is φ = 12152222064.

The previous prime is 12321002971. The next prime is 12321003031. The reversal of 12321002999 is 99920012321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12321002999 - 2¹² = 12320998903 is a prime.

It is a super-2 number, since 2×12321002999² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321002699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84390359 + ... + 84390504.

It is an arithmetic number, because the mean of its divisors is an integer number (3122445984).

Almost surely, 2^12321002999 is an apocalyptic number.

12321002999 is a deficient number, since it is larger than the sum of its proper divisors (168780937).

12321002999 is an equidigital number, since it uses as much as digits as its factorization.

12321002999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168780936.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 12321002999 in words is "twelve billion, three hundred twenty-one million, two thousand, nine hundred ninety-nine".