1321321302211 has 16 divisors (see below), whose sum is σ = 1441881302400. Its totient is φ = 1205936903808.

The previous prime is 1321321302209. The next prime is 1321321302241. The reversal of 1321321302211 is 1122031231231.

It is a cyclic number.

It is not a de Polignac number, because 1321321302211 - 2¹ = 1321321302209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321321302241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6400381 + ... + 6603598.

It is an arithmetic number, because the mean of its divisors is an integer number (90117581400).

Almost surely, 2^{1321321302211} is an apocalyptic number.

1321321302211 is a deficient number, since it is larger than the sum of its proper divisors (120560000189).

1321321302211 is a wasteful number, since it uses less digits than its factorization.

1321321302211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13004178.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1321321302211 its reverse (1122031231231), we get a palindrome (2443352533442).

The spelling of 1321321302211 in words is "one trillion, three hundred twenty-one billion, three hundred twenty-one million, three hundred two thousand, two hundred eleven".