1321233414121 has 16 divisors (see below), whose sum is σ = 1350082571200. Its totient is φ = 1292790777408.

The previous prime is 1321233414097. The next prime is 1321233414133. The reversal of 1321233414121 is 1214143321231.

It is a cyclic number.

It is not a de Polignac number, because 1321233414121 - 2¹⁹ = 1321232889833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321233414121.

It is not an unprimeable number, because it can be changed into a prime (1321233414521) 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, 2552590 + ... + 3026248.

It is an arithmetic number, because the mean of its divisors is an integer number (84380160700).

Almost surely, 2^{1321233414121} is an apocalyptic number.

It is an amenable number.

1321233414121 is a deficient number, since it is larger than the sum of its proper divisors (28849157079).

1321233414121 is a wasteful number, since it uses less digits than its factorization.

1321233414121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474088.

The product of its digits is 3456, while the sum is 28.

Adding to 1321233414121 its reverse (1214143321231), we get a palindrome (2535376735352).

The spelling of 1321233414121 in words is "one trillion, three hundred twenty-one billion, two hundred thirty-three million, four hundred fourteen thousand, one hundred twenty-one".