123122269 has 2 divisors, whose sum is σ = 123122270. Its totient is φ = 123122268.

The previous prime is 123122267. The next prime is 123122323. The reversal of 123122269 is 962221321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95296644 + 27825625 = 9762^2 + 5275^2 .

It is an emirp because it is prime and its reverse (962221321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123122269 - 2¹ = 123122267 is a prime.

It is a super-2 number, since 2×123122269² = 30318186247416722, which contains 22 as substring.

Together with 123122267, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123122267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561134 + 61561135.

It is an arithmetic number, because the mean of its divisors is an integer number (61561135).

Almost surely, 2^123122269 is an apocalyptic number.

It is an amenable number.

123122269 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122269 is an equidigital number, since it uses as much as digits as its factorization.

123122269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 123122269 is about 11096.0474494299. The cubic root of 123122269 is about 497.4837165449.

The spelling of 123122269 in words is "one hundred twenty-three million, one hundred twenty-two thousand, two hundred sixty-nine".