123223636 has 24 divisors (see below), whose sum is σ = 224824320. Its totient is φ = 59028000.

The previous prime is 123223619. The next prime is 123223637. The reversal of 123223636 is 636322321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123223637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7605 + ... + 17443.

It is an arithmetic number, because the mean of its divisors is an integer number (9367680).

Almost surely, 2^123223636 is an apocalyptic number.

It is an amenable number.

123223636 is a deficient number, since it is larger than the sum of its proper divisors (101600684).

123223636 is a wasteful number, since it uses less digits than its factorization.

123223636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9975 (or 9973 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

The square root of 123223636 is about 11100.6142172404. The cubic root of 123223636 is about 497.6202057961.

Adding to 123223636 its reverse (636322321), we get a palindrome (759545957).

The spelling of 123223636 in words is "one hundred twenty-three million, two hundred twenty-three thousand, six hundred thirty-six".