1323111213213 has 8 divisors (see below), whose sum is σ = 1764168475968. Its totient is φ = 882064046304.

The previous prime is 1323111213209. The next prime is 1323111213269. The reversal of 1323111213213 is 3123121113231.

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

It is not a de Polignac number, because 1323111213213 - 2² = 1323111213209 is a prime.

It is a super-3 number, since 3×1323111213213³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323111213913) 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, 2212681 + ... + 2746302.

It is an arithmetic number, because the mean of its divisors is an integer number (220521059496).

Almost surely, 2^{1323111213213} is an apocalyptic number.

It is an amenable number.

1323111213213 is a deficient number, since it is larger than the sum of its proper divisors (441057262755).

1323111213213 is an equidigital number, since it uses as much as digits as its factorization.

1323111213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047923.

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

Adding to 1323111213213 its reverse (3123121113231), we get a palindrome (4446232326444).

The spelling of 1323111213213 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, two hundred thirteen thousand, two hundred thirteen".