123140234 has 12 divisors (see below), whose sum is σ = 214867314. Its totient is φ = 52774344.

The previous prime is 123140221. The next prime is 123140279. The reversal of 123140234 is 432041321.

It can be written as a sum of positive squares in only one way, i.e., 123099025 + 41209 = 11095^2 + 203^2 .

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, 628169 + ... + 628364.

Almost surely, 2^123140234 is an apocalyptic number.

123140234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123140234 is a deficient number, since it is larger than the sum of its proper divisors (91727080).

123140234 is a wasteful number, since it uses less digits than its factorization.

123140234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256549 (or 1256542 counting only the distinct ones).

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

The square root of 123140234 is about 11096.8569423959. The cubic root of 123140234 is about 497.5079116273.

Adding to 123140234 its reverse (432041321), we get a palindrome (555181555).

The spelling of 123140234 in words is "one hundred twenty-three million, one hundred forty thousand, two hundred thirty-four".