243121410134 has 4 divisors (see below), whose sum is σ = 364682115204. Its totient is φ = 121560705066.

The previous prime is 243121410113. The next prime is 243121410199. The reversal of 243121410134 is 431014121342.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60780352532 + ... + 60780352535.

It is an arithmetic number, because the mean of its divisors is an integer number (91170528801).

Almost surely, 2^243121410134 is an apocalyptic number.

243121410134 is a deficient number, since it is larger than the sum of its proper divisors (121560705070).

243121410134 is a wasteful number, since it uses less digits than its factorization.

243121410134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121560705069.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 243121410134 its reverse (431014121342), we get a palindrome (674135531476).

The spelling of 243121410134 in words is "two hundred forty-three billion, one hundred twenty-one million, four hundred ten thousand, one hundred thirty-four".