123042134 has 8 divisors (see below), whose sum is σ = 192587760. Its totient is φ = 58846216.

The previous prime is 123042133. The next prime is 123042137. The reversal of 123042134 is 431240321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123042133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337369 + ... + 1337460.

It is an arithmetic number, because the mean of its divisors is an integer number (24073470).

Almost surely, 2^123042134 is an apocalyptic number.

123042134 is a deficient number, since it is larger than the sum of its proper divisors (69545626).

123042134 is a wasteful number, since it uses less digits than its factorization.

123042134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674854.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123042134 is about 11092.4358911828. The cubic root of 123042134 is about 497.3757628550.

Adding to 123042134 its reverse (431240321), we get a palindrome (554282455).

The spelling of 123042134 in words is "one hundred twenty-three million, forty-two thousand, one hundred thirty-four".