13212322311 has 4 divisors (see below), whose sum is σ = 17616429752. Its totient is φ = 8808214872.

The previous prime is 13212322289. The next prime is 13212322349. The reversal of 13212322311 is 11322321231.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13212322311 - 2²³ = 13203933703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212322351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202053716 + ... + 2202053721.

It is an arithmetic number, because the mean of its divisors is an integer number (4404107438).

Almost surely, 2^13212322311 is an apocalyptic number.

13212322311 is a deficient number, since it is larger than the sum of its proper divisors (4404107441).

13212322311 is an equidigital number, since it uses as much as digits as its factorization.

13212322311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404107440.

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

Adding to 13212322311 its reverse (11322321231), we get a palindrome (24534643542).

The spelling of 13212322311 in words is "thirteen billion, two hundred twelve million, three hundred twenty-two thousand, three hundred eleven".