123222233213 has 4 divisors (see below), whose sum is σ = 123298628028. Its totient is φ = 123145838400.

The previous prime is 123222233209. The next prime is 123222233261. The reversal of 123222233213 is 312332222321.

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 78499711684 + 44722521529 = 280178^2 + 211477^2 .

It is a cyclic number.

It is not a de Polignac number, because 123222233213 - 2² = 123222233209 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 (123222233263) 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, 38194988 + ... + 38198213.

It is an arithmetic number, because the mean of its divisors is an integer number (30824657007).

Almost surely, 2^123222233213 is an apocalyptic number.

It is an amenable number.

123222233213 is a deficient number, since it is larger than the sum of its proper divisors (76394815).

123222233213 is an equidigital number, since it uses as much as digits as its factorization.

123222233213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76394814.

The product of its digits is 5184, while the sum is 26.

Adding to 123222233213 its reverse (312332222321), we get a palindrome (435554455534).

The spelling of 123222233213 in words is "one hundred twenty-three billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred thirteen".