243321033142 has 16 divisors (see below), whose sum is σ = 415473069312. Its totient is φ = 105791753320.

The previous prime is 243321033139. The next prime is 243321033149. The reversal of 243321033142 is 241330123342.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 243321033142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243321033149) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 240435298 + ... + 240436309.

It is an arithmetic number, because the mean of its divisors is an integer number (25967066832).

Almost surely, 2^243321033142 is an apocalyptic number.

243321033142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243321033142 is a deficient number, since it is larger than the sum of its proper divisors (172152036170).

243321033142 is a wasteful number, since it uses less digits than its factorization.

243321033142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480871643.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 243321033142 its reverse (241330123342), we get a palindrome (484651156484).

The spelling of 243321033142 in words is "two hundred forty-three billion, three hundred twenty-one million, thirty-three thousand, one hundred forty-two".