243111201042 has 32 divisors (see below), whose sum is σ = 488469565440. Its totient is φ = 80662836240.

The previous prime is 243111201007. The next prime is 243111201103. The reversal of 243111201042 is 240102111342.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3364263 + ... + 3435765.

It is an arithmetic number, because the mean of its divisors is an integer number (15264673920).

Almost surely, 2^243111201042 is an apocalyptic number.

243111201042 is an abundant number, since it is smaller than the sum of its proper divisors (245358364398).

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

243111201042 is a wasteful number, since it uses less digits than its factorization.

243111201042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74118.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 243111201042 its reverse (240102111342), we get a palindrome (483213312384).

It can be divided in two parts, 243111 and 201042, that added together give a triangular number (444153 = T₉₄₂).

The spelling of 243111201042 in words is "two hundred forty-three billion, one hundred eleven million, two hundred one thousand, forty-two".