1200321322003 has 4 divisors (see below), whose sum is σ = 1213808078520. Its totient is φ = 1186834565488.

The previous prime is 1200321322001. The next prime is 1200321322009. The reversal of 1200321322003 is 3002231230021.

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 1200321322003 - 2¹ = 1200321322001 is a prime.

It is a super-2 number, since 2×1200321322003² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200321322001) 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, 6743378125 + ... + 6743378302.

It is an arithmetic number, because the mean of its divisors is an integer number (303452019630).

Almost surely, 2^{1200321322003} is an apocalyptic number.

1200321322003 is a deficient number, since it is larger than the sum of its proper divisors (13486756517).

1200321322003 is an equidigital number, since it uses as much as digits as its factorization.

1200321322003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13486756516.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1200321322003 its reverse (3002231230021), we get a palindrome (4202552552024).

The spelling of 1200321322003 in words is "one trillion, two hundred billion, three hundred twenty-one million, three hundred twenty-two thousand, three".