123223669 has 2 divisors, whose sum is σ = 123223670. Its totient is φ = 123223668.

The previous prime is 123223651. The next prime is 123223679. The reversal of 123223669 is 966322321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63393444 + 59830225 = 7962^2 + 7735^2 .

It is a cyclic number.

It is not a de Polignac number, because 123223669 - 2⁵ = 123223637 is a prime.

It is a super-2 number, since 2×123223669² = 30368145203643122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123223609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61611834 + 61611835.

It is an arithmetic number, because the mean of its divisors is an integer number (61611835).

Almost surely, 2^123223669 is an apocalyptic number.

It is an amenable number.

123223669 is a deficient number, since it is larger than the sum of its proper divisors (1).

123223669 is an equidigital number, since it uses as much as digits as its factorization.

123223669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The square root of 123223669 is about 11100.6157036446. The cubic root of 123223669 is about 497.6202502180.

The spelling of 123223669 in words is "one hundred twenty-three million, two hundred twenty-three thousand, six hundred sixty-nine".