1323213031211 has 16 divisors (see below), whose sum is σ = 1447922468160. Its totient is φ = 1205297533440.

The previous prime is 1323213031181. The next prime is 1323213031213. The reversal of 1323213031211 is 1121303123231.

It is a cyclic number.

It is not a de Polignac number, because 1323213031211 - 2¹⁰ = 1323213030187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323213031213) 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, 13539170 + ... + 13636551.

It is an arithmetic number, because the mean of its divisors is an integer number (90495154260).

Almost surely, 2^{1323213031211} is an apocalyptic number.

1323213031211 is a deficient number, since it is larger than the sum of its proper divisors (124709436949).

1323213031211 is a wasteful number, since it uses less digits than its factorization.

1323213031211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27175846.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1323213031211 its reverse (1121303123231), we get a palindrome (2444516154442).

The spelling of 1323213031211 in words is "one trillion, three hundred twenty-three billion, two hundred thirteen million, thirty-one thousand, two hundred eleven".