243120230135 has 8 divisors (see below), whose sum is σ = 291764640816. Its totient is φ = 194482607680.

The previous prime is 243120230057. The next prime is 243120230141. The reversal of 243120230135 is 531032021342.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-243120230135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1617926 + ... + 1761795.

It is an arithmetic number, because the mean of its divisors is an integer number (36470580102).

Almost surely, 2^243120230135 is an apocalyptic number.

243120230135 is a deficient number, since it is larger than the sum of its proper divisors (48644410681).

243120230135 is a wasteful number, since it uses less digits than its factorization.

243120230135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394113.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 243120230135 its reverse (531032021342), we get a palindrome (774152251477).

The spelling of 243120230135 in words is "two hundred forty-three billion, one hundred twenty million, two hundred thirty thousand, one hundred thirty-five".