122243352313 has 4 divisors (see below), whose sum is σ = 122483516580. Its totient is φ = 122003188048.

The previous prime is 122243352281. The next prime is 122243352317. The reversal of 122243352313 is 313253342221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313253342221 = 43 ⋅7284961447.

It can be written as a sum of positive squares in 2 ways, for example, as 83618132224 + 38625220089 = 289168^2 + 196533^2 .

It is a cyclic number.

It is not a de Polignac number, because 122243352313 - 2⁵ = 122243352281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122243352317) 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, 120081370 + ... + 120082387.

It is an arithmetic number, because the mean of its divisors is an integer number (30620879145).

Almost surely, 2^122243352313 is an apocalyptic number.

It is an amenable number.

122243352313 is a deficient number, since it is larger than the sum of its proper divisors (240164267).

122243352313 is an equidigital number, since it uses as much as digits as its factorization.

122243352313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240164266.

The product of its digits is 25920, while the sum is 31.

Adding to 122243352313 its reverse (313253342221), we get a palindrome (435496694534).

The spelling of 122243352313 in words is "one hundred twenty-two billion, two hundred forty-three million, three hundred fifty-two thousand, three hundred thirteen".