122123230213 has 4 divisors (see below), whose sum is σ = 122127012460. Its totient is φ = 122119447968.

The previous prime is 122123230183. The next prime is 122123230231. The reversal of 122123230213 is 312032321221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312032321221 = 8689 ⋅35911189.

It can be written as a sum of positive squares in 2 ways, for example, as 71327987329 + 50795242884 = 267073^2 + 225378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122123230213 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 (122123210213) 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, 1842270 + ... + 1907407.

It is an arithmetic number, because the mean of its divisors is an integer number (30531753115).

Almost surely, 2^122123230213 is an apocalyptic number.

It is an amenable number.

122123230213 is a deficient number, since it is larger than the sum of its proper divisors (3782247).

122123230213 is an equidigital number, since it uses as much as digits as its factorization.

122123230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782246.

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

Adding to 122123230213 its reverse (312032321221), we get a palindrome (434155551434).

The spelling of 122123230213 in words is "one hundred twenty-two billion, one hundred twenty-three million, two hundred thirty thousand, two hundred thirteen".