1323111323211 has 8 divisors (see below), whose sum is σ = 1781615247504. Its totient is φ = 873340807200.

The previous prime is 1323111323189. The next prime is 1323111323269. The reversal of 1323111323211 is 1123231113231.

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

It is not a de Polignac number, because 1323111323211 - 2⁹ = 1323111322699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323111321211) 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 7 ways as a sum of consecutive naturals, for example, 2183351716 + ... + 2183352321.

It is an arithmetic number, because the mean of its divisors is an integer number (222701905938).

Almost surely, 2^{1323111323211} is an apocalyptic number.

1323111323211 is a deficient number, since it is larger than the sum of its proper divisors (458503924293).

1323111323211 is a wasteful number, since it uses less digits than its factorization.

1323111323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366704141.

The product of its digits is 648, while the sum is 24.

Adding to 1323111323211 its reverse (1123231113231), we get a palindrome (2446342436442).

The spelling of 1323111323211 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, three hundred twenty-three thousand, two hundred eleven".