123442342 has 4 divisors (see below), whose sum is σ = 185163516. Its totient is φ = 61721170.

The previous prime is 123442303. The next prime is 123442381. The reversal of 123442342 is 243244321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (123442303) and next prime (123442381).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30860584 + ... + 30860587.

It is an arithmetic number, because the mean of its divisors is an integer number (46290879).

Almost surely, 2^123442342 is an apocalyptic number.

123442342 is a deficient number, since it is larger than the sum of its proper divisors (61721174).

123442342 is an equidigital number, since it uses as much as digits as its factorization.

123442342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61721173.

The product of its digits is 4608, while the sum is 25.

The square root of 123442342 is about 11110.4609265323. The cubic root of 123442342 is about 497.9144356041.

Adding to 123442342 its reverse (243244321), we get a palindrome (366686663).

The spelling of 123442342 in words is "one hundred twenty-three million, four hundred forty-two thousand, three hundred forty-two".