1211343301321 has 8 divisors (see below), whose sum is σ = 1282636491264. Its totient is φ = 1140054300480.

The previous prime is 1211343301303. The next prime is 1211343301349. The reversal of 1211343301321 is 1231033431121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211343301321 - 2¹¹ = 1211343299273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211343304321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441925 + ... + 1618018.

It is an arithmetic number, because the mean of its divisors is an integer number (160329561408).

Almost surely, 2^{1211343301321} is an apocalyptic number.

It is an amenable number.

1211343301321 is a deficient number, since it is larger than the sum of its proper divisors (71293189943).

1211343301321 is a wasteful number, since it uses less digits than its factorization.

1211343301321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094551.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 1211343301321 its reverse (1231033431121), we get a palindrome (2442376732442).

The spelling of 1211343301321 in words is "one trillion, two hundred eleven billion, three hundred forty-three million, three hundred one thousand, three hundred twenty-one".