243142113 has 8 divisors (see below), whose sum is σ = 324673888. Its totient is φ = 161852544.

The previous prime is 243142103. The next prime is 243142169. The reversal of 243142113 is 311241342.

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

It is not a de Polignac number, because 243142113 - 2¹³ = 243133921 is a prime.

It is a super-2 number, since 2×243142113² = 118236174228209538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243142113.

It is not an unprimeable number, because it can be changed into a prime (243142103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58195 + ... + 62232.

It is an arithmetic number, because the mean of its divisors is an integer number (40584236).

Almost surely, 2^243142113 is an apocalyptic number.

It is an amenable number.

243142113 is a deficient number, since it is larger than the sum of its proper divisors (81531775).

243142113 is a wasteful number, since it uses less digits than its factorization.

243142113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121103.

The product of its digits is 576, while the sum is 21.

The square root of 243142113 is about 15593.0148784640. The cubic root of 243142113 is about 624.1467721603.

Adding to 243142113 its reverse (311241342), we get a palindrome (554383455).

It can be divided in two parts, 2431 and 42113, that added together give a palindrome (44544).

The spelling of 243142113 in words is "two hundred forty-three million, one hundred forty-two thousand, one hundred thirteen".