122123320213 has 4 divisors (see below), whose sum is σ = 122384826720. Its totient is φ = 121861813708.

The previous prime is 122123320177. The next prime is 122123320229. The reversal of 122123320213 is 312023321221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122123320213 - 2¹³ = 122123312021 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 (122123320273) 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, 130752553 + ... + 130753486.

It is an arithmetic number, because the mean of its divisors is an integer number (30596206680).

Almost surely, 2^122123320213 is an apocalyptic number.

It is an amenable number.

122123320213 is a deficient number, since it is larger than the sum of its proper divisors (261506507).

122123320213 is an equidigital number, since it uses as much as digits as its factorization.

122123320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261506506.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 122123320213 its reverse (312023321221), we get a palindrome (434146641434).

The spelling of 122123320213 in words is "one hundred twenty-two billion, one hundred twenty-three million, three hundred twenty thousand, two hundred thirteen".