243400121110 has 32 divisors (see below), whose sum is σ = 476055936000. Its totient is φ = 89260483680.

The previous prime is 243400121051. The next prime is 243400121117. The reversal of 243400121110 is 11121004342.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243400121117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20656260 + ... + 20668039.

It is an arithmetic number, because the mean of its divisors is an integer number (14876748000).

Almost surely, 2^243400121110 is an apocalyptic number.

243400121110 is a deficient number, since it is larger than the sum of its proper divisors (232655814890).

243400121110 is a wasteful number, since it uses less digits than its factorization.

243400121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41324356.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 243400121110 its reverse (11121004342), we get a palindrome (254521125452).

The spelling of 243400121110 in words is "two hundred forty-three billion, four hundred million, one hundred twenty-one thousand, one hundred ten".