243141520200111 has 32 divisors (see below), whose sum is σ = 390213468344000. Its totient is φ = 149625550855872.

The previous prime is 243141520199993. The next prime is 243141520200127. The reversal of 243141520200111 is 111002025141342.

243141520200111 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 4 + 1 + 520 + 20 + 0 + 111 = 666.

It is not a de Polignac number, because 243141520200111 - 2⁷ = 243141520199983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243141520200151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2049381166 + ... + 2049499803.

It is an arithmetic number, because the mean of its divisors is an integer number (12194170885750).

Almost surely, 2^{243141520200111} is an apocalyptic number.

243141520200111 is a deficient number, since it is larger than the sum of its proper divisors (147071948143889).

243141520200111 is an equidigital number, since it uses as much as digits as its factorization.

243141520200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098881017 (or 4098880985 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 243141520200111 its reverse (111002025141342), we get a palindrome (354143545341453).

The spelling of 243141520200111 in words is "two hundred forty-three trillion, one hundred forty-one billion, five hundred twenty million, two hundred thousand, one hundred eleven".