1321303121411 has 16 divisors (see below), whose sum is σ = 1630195358400. Its totient is φ = 1042870560768.

The previous prime is 1321303121399. The next prime is 1321303121471. The reversal of 1321303121411 is 1141213031231.

It is a cyclic number.

It is not a de Polignac number, because 1321303121411 - 2¹⁸ = 1321302859267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321303121471) 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, 17713166 + ... + 17787603.

It is an arithmetic number, because the mean of its divisors is an integer number (101887209900).

Almost surely, 2^{1321303121411} is an apocalyptic number.

1321303121411 is a deficient number, since it is larger than the sum of its proper divisors (308892236989).

1321303121411 is a wasteful number, since it uses less digits than its factorization.

1321303121411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35501198.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1321303121411 its reverse (1141213031231), we get a palindrome (2462516152642).

The spelling of 1321303121411 in words is "one trillion, three hundred twenty-one billion, three hundred three million, one hundred twenty-one thousand, four hundred eleven".