123212233 has 2 divisors, whose sum is σ = 123212234. Its totient is φ = 123212232.

The previous prime is 123212161. The next prime is 123212267. The reversal of 123212233 is 332212321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102171664 + 21040569 = 10108^2 + 4587^2 .

It is a cyclic number.

It is not a de Polignac number, because 123212233 - 2¹³ = 123204041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123212233.

It is not a weakly prime, because it can be changed into another prime (123212273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606116 + 61606117.

It is an arithmetic number, because the mean of its divisors is an integer number (61606117).

Almost surely, 2^123212233 is an apocalyptic number.

It is an amenable number.

123212233 is a deficient number, since it is larger than the sum of its proper divisors (1).

123212233 is an equidigital number, since it uses as much as digits as its factorization.

123212233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 123212233 is about 11100.1005851298. The cubic root of 123212233 is about 497.6048555532.

Adding to 123212233 its reverse (332212321), we get a palindrome (455424554).

The spelling of 123212233 in words is "one hundred twenty-three million, two hundred twelve thousand, two hundred thirty-three".