243241020111 has 16 divisors (see below), whose sum is σ = 326399580416. Its totient is φ = 161122110336.

The previous prime is 243241020097. The next prime is 243241020181. The reversal of 243241020111 is 111020142342.

It is not a de Polignac number, because 243241020111 - 2¹³ = 243241011919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243241020181) 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, 1789206 + ... + 1920348.

It is an arithmetic number, because the mean of its divisors is an integer number (20399973776).

Almost surely, 2^243241020111 is an apocalyptic number.

243241020111 is a deficient number, since it is larger than the sum of its proper divisors (83158560305).

243241020111 is a wasteful number, since it uses less digits than its factorization.

243241020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135102.

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

Adding to 243241020111 its reverse (111020142342), we get a palindrome (354261162453).

The spelling of 243241020111 in words is "two hundred forty-three billion, two hundred forty-one million, twenty thousand, one hundred eleven".