122321323213 has 4 divisors (see below), whose sum is σ = 122325418620. Its totient is φ = 122317227808.

The previous prime is 122321323211. The next prime is 122321323217. The reversal of 122321323213 is 312323123221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 81774265444 + 40547057769 = 285962^2 + 201363^2 .

It is a cyclic number.

It is not a de Polignac number, because 122321323213 - 2¹ = 122321323211 is a prime.

It is a super-2 number, since 2×122321323213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122321323211) 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, 2002570 + ... + 2062747.

It is an arithmetic number, because the mean of its divisors is an integer number (30581354655).

Almost surely, 2^122321323213 is an apocalyptic number.

It is an amenable number.

122321323213 is a deficient number, since it is larger than the sum of its proper divisors (4095407).

122321323213 is an equidigital number, since it uses as much as digits as its factorization.

122321323213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095406.

The product of its digits is 2592, while the sum is 25.

Adding to 122321323213 its reverse (312323123221), we get a palindrome (434644446434).

The spelling of 122321323213 in words is "one hundred twenty-two billion, three hundred twenty-one million, three hundred twenty-three thousand, two hundred thirteen".