1200002302321 has 4 divisors (see below), whose sum is σ = 1200020882544. Its totient is φ = 1199983722100.

The previous prime is 1200002302259. The next prime is 1200002302327. The reversal of 1200002302321 is 1232032000021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1200002302321 - 2⁷ = 1200002302193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200002302295 and 1200002302304.

It is not an unprimeable number, because it can be changed into a prime (1200002302327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9192895 + ... + 9322516.

It is an arithmetic number, because the mean of its divisors is an integer number (300005220636).

Almost surely, 2^{1200002302321} is an apocalyptic number.

It is an amenable number.

1200002302321 is a deficient number, since it is larger than the sum of its proper divisors (18580223).

1200002302321 is an equidigital number, since it uses as much as digits as its factorization.

1200002302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18580222.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1200002302321 its reverse (1232032000021), we get a palindrome (2432034302342).

The spelling of 1200002302321 in words is "one trillion, two hundred billion, two million, three hundred two thousand, three hundred twenty-one".