123223442 has 4 divisors (see below), whose sum is σ = 184835166. Its totient is φ = 61611720.

The previous prime is 123223427. The next prime is 123223483. The reversal of 123223442 is 244322321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244322321 = 41 ⋅5959081.

It can be written as a sum of positive squares in only one way, i.e., 109599961 + 13623481 = 10469^2 + 3691^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30805859 + ... + 30805862.

Almost surely, 2^123223442 is an apocalyptic number.

123223442 is a deficient number, since it is larger than the sum of its proper divisors (61611724).

123223442 is an equidigital number, since it uses as much as digits as its factorization.

123223442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61611723.

The product of its digits is 2304, while the sum is 23.

The square root of 123223442 is about 11100.6054789818. The cubic root of 123223442 is about 497.6199446493.

Adding to 123223442 its reverse (244322321), we get a palindrome (367545763).

The spelling of 123223442 in words is "one hundred twenty-three million, two hundred twenty-three thousand, four hundred forty-two".