243240511134 has 16 divisors (see below), whose sum is σ = 486582451200. Its totient is φ = 81063265560.

The previous prime is 243240511127. The next prime is 243240511159. The reversal of 243240511134 is 431115042342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4195012 + ... + 4252599.

It is an arithmetic number, because the mean of its divisors is an integer number (30411403200).

Almost surely, 2^243240511134 is an apocalyptic number.

243240511134 is an abundant number, since it is smaller than the sum of its proper divisors (243341940066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243240511134 is a wasteful number, since it uses less digits than its factorization.

243240511134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8452415.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 243240511134 its reverse (431115042342), we get a palindrome (674355553476).

The spelling of 243240511134 in words is "two hundred forty-three billion, two hundred forty million, five hundred eleven thousand, one hundred thirty-four".