122320313 has 4 divisors (see below), whose sum is σ = 123213300. Its totient is φ = 121427328.

The previous prime is 122320283. The next prime is 122320379. The reversal of 122320313 is 313023221.

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 102677689 + 19642624 = 10133^2 + 4432^2 .

It is a cyclic number.

It is not a de Polignac number, because 122320313 - 2⁶ = 122320249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122320291 and 122320300.

It is not an unprimeable number, because it can be changed into a prime (122320813) 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, 446288 + ... + 446561.

It is an arithmetic number, because the mean of its divisors is an integer number (30803325).

Almost surely, 2^122320313 is an apocalyptic number.

It is an amenable number.

122320313 is a deficient number, since it is larger than the sum of its proper divisors (892987).

122320313 is an equidigital number, since it uses as much as digits as its factorization.

122320313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892986.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 122320313 is about 11059.8514004484. The cubic root of 122320313 is about 496.4012440548.

Adding to 122320313 its reverse (313023221), we get a palindrome (435343534).

The spelling of 122320313 in words is "one hundred twenty-two million, three hundred twenty thousand, three hundred thirteen".