243134423012 has 24 divisors (see below), whose sum is σ = 459423921600. Its totient is φ = 111919794336.

The previous prime is 243134422991. The next prime is 243134423023. The reversal of 243134423012 is 210324431342.

It is a super-2 number, since 2×243134423012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 6148712 + ... + 6188127.

It is an arithmetic number, because the mean of its divisors is an integer number (19142663400).

Almost surely, 2^243134423012 is an apocalyptic number.

It is an amenable number.

243134423012 is a deficient number, since it is larger than the sum of its proper divisors (216289498588).

243134423012 is a wasteful number, since it uses less digits than its factorization.

243134423012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12337235 (or 12337233 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 243134423012 its reverse (210324431342), we get a palindrome (453458854354).

The spelling of 243134423012 in words is "two hundred forty-three billion, one hundred thirty-four million, four hundred twenty-three thousand, twelve".