243043140412 has 12 divisors (see below), whose sum is σ = 427784025816. Its totient is φ = 120819133040.

The previous prime is 243043140391. The next prime is 243043140437. The reversal of 243043140412 is 214041340342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175608514 + ... + 175609897.

It is an arithmetic number, because the mean of its divisors is an integer number (35648668818).

Almost surely, 2^243043140412 is an apocalyptic number.

It is an amenable number.

243043140412 is a deficient number, since it is larger than the sum of its proper divisors (184740885404).

243043140412 is a wasteful number, since it uses less digits than its factorization.

243043140412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351218588 (or 351218586 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 243043140412 its reverse (214041340342), we get a palindrome (457084480754).

The spelling of 243043140412 in words is "two hundred forty-three billion, forty-three million, one hundred forty thousand, four hundred twelve".