243220141311 has 64 divisors (see below), whose sum is σ = 394569031680. Its totient is φ = 130172918400.

The previous prime is 243220141259. The next prime is 243220141357. The reversal of 243220141311 is 113141022342.

It is not a de Polignac number, because 243220141311 - 2¹¹ = 243220139263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243220141111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29938096 + ... + 29946218.

It is an arithmetic number, because the mean of its divisors is an integer number (6165141120).

Almost surely, 2^243220141311 is an apocalyptic number.

243220141311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

243220141311 is a deficient number, since it is larger than the sum of its proper divisors (151348890369).

243220141311 is a wasteful number, since it uses less digits than its factorization.

243220141311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8996.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 243220141311 its reverse (113141022342), we get a palindrome (356361163653).

The spelling of 243220141311 in words is "two hundred forty-three billion, two hundred twenty million, one hundred forty-one thousand, three hundred eleven".