1321342212003 has 16 divisors (see below), whose sum is σ = 1922526700416. Its totient is φ = 800574131840.

The previous prime is 1321342211971. The next prime is 1321342212017. The reversal of 1321342212003 is 3002122431231.

It is a cyclic number.

It is not a de Polignac number, because 1321342212003 - 2⁵ = 1321342211971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321342212023) 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 15 ways as a sum of consecutive naturals, for example, 5871126 + ... + 6092027.

It is an arithmetic number, because the mean of its divisors is an integer number (120157918776).

Almost surely, 2^{1321342212003} is an apocalyptic number.

1321342212003 is a deficient number, since it is larger than the sum of its proper divisors (601184488413).

1321342212003 is a wasteful number, since it uses less digits than its factorization.

1321342212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966514.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1321342212003 its reverse (3002122431231), we get a palindrome (4323464643234).

The spelling of 1321342212003 in words is "one trillion, three hundred twenty-one billion, three hundred forty-two million, two hundred twelve thousand, three".