243234123412156 has 48 divisors (see below), whose sum is σ = 426384116928000. Its totient is φ = 121410327306240.

The previous prime is 243234123412123. The next prime is 243234123412187. The reversal of 243234123412156 is 651214321432342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36200937765 + ... + 36200944483.

It is an arithmetic number, because the mean of its divisors is an integer number (8883002436000).

Almost surely, 2^{243234123412156} is an apocalyptic number.

It is an amenable number.

243234123412156 is a deficient number, since it is larger than the sum of its proper divisors (183149993515844).

243234123412156 is a wasteful number, since it uses less digits than its factorization.

243234123412156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13462 (or 13460 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

Adding to 243234123412156 its reverse (651214321432342), we get a palindrome (894448444844498).

The spelling of 243234123412156 in words is "two hundred forty-three trillion, two hundred thirty-four billion, one hundred twenty-three million, four hundred twelve thousand, one hundred fifty-six".