1323212100213 has 16 divisors (see below), whose sum is σ = 1776511097856. Its totient is φ = 876042831360.

The previous prime is 1323212100209. The next prime is 1323212100229. The reversal of 1323212100213 is 3120012123231.

It is not a de Polignac number, because 1323212100213 - 2² = 1323212100209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1323212100213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323212100293) 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 15 ways as a sum of consecutive naturals, for example, 1607320 + ... + 2286897.

It is an arithmetic number, because the mean of its divisors is an integer number (111031943616).

Almost surely, 2^{1323212100213} is an apocalyptic number.

It is an amenable number.

1323212100213 is a deficient number, since it is larger than the sum of its proper divisors (453298997643).

1323212100213 is a wasteful number, since it uses less digits than its factorization.

1323212100213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3895004.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1323212100213 its reverse (3120012123231), we get a palindrome (4443224223444).

The spelling of 1323212100213 in words is "one trillion, three hundred twenty-three billion, two hundred twelve million, one hundred thousand, two hundred thirteen".