243125432042 has 4 divisors (see below), whose sum is σ = 364688148066. Its totient is φ = 121562716020.

The previous prime is 243125432029. The next prime is 243125432047. The reversal of 243125432042 is 240234521342.

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

It can be written as a sum of positive squares in only one way, i.e., 195470978641 + 47654453401 = 442121^2 + 218299^2 .

It is not an unprimeable number, because it can be changed into a prime (243125432047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60781358009 + ... + 60781358012.

Almost surely, 2^243125432042 is an apocalyptic number.

243125432042 is a deficient number, since it is larger than the sum of its proper divisors (121562716024).

243125432042 is a wasteful number, since it uses less digits than its factorization.

243125432042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121562716023.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 243125432042 its reverse (240234521342), we get a palindrome (483359953384).

The spelling of 243125432042 in words is "two hundred forty-three billion, one hundred twenty-five million, four hundred thirty-two thousand, forty-two".