123115342 has 12 divisors (see below), whose sum is σ = 214823880. Its totient is φ = 52763676.

The previous prime is 123115337. The next prime is 123115361. The reversal of 123115342 is 243511321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628042 + ... + 628237.

It is an arithmetic number, because the mean of its divisors is an integer number (17901990).

Almost surely, 2^123115342 is an apocalyptic number.

123115342 is a deficient number, since it is larger than the sum of its proper divisors (91708538).

123115342 is a wasteful number, since it uses less digits than its factorization.

123115342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256295 (or 1256288 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 123115342 is about 11095.7353068645. The cubic root of 123115342 is about 497.4743867019.

Adding to 123115342 its reverse (243511321), we get a palindrome (366626663).

The spelling of 123115342 in words is "one hundred twenty-three million, one hundred fifteen thousand, three hundred forty-two".