243145231322 has 96 divisors (see below), whose sum is σ = 481788751680. Its totient is φ = 91159810560.

The previous prime is 243145231319. The next prime is 243145231327. The reversal of 243145231322 is 223132541342.

It is not an unprimeable number, because it can be changed into a prime (243145231327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1605197 + ... + 1750127.

It is an arithmetic number, because the mean of its divisors is an integer number (5018632830).

Almost surely, 2^243145231322 is an apocalyptic number.

243145231322 is a deficient number, since it is larger than the sum of its proper divisors (238643520358).

243145231322 is a wasteful number, since it uses less digits than its factorization.

243145231322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145036 (or 145029 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

Adding to 243145231322 its reverse (223132541342), we get a palindrome (466277772664).

The spelling of 243145231322 in words is "two hundred forty-three billion, one hundred forty-five million, two hundred thirty-one thousand, three hundred twenty-two".