201123241443 has 12 divisors (see below), whose sum is σ = 290895125248. Its totient is φ = 133905033360.

The previous prime is 201123241439. The next prime is 201123241483. The reversal of 201123241443 is 344142321102.

201123241443 is a `hidden beast` number, since 2 + 0 + 11 + 232 + 414 + 4 + 3 = 666.

It is not a de Polignac number, because 201123241443 - 2² = 201123241439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201123241483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14753443 + ... + 14767068.

Almost surely, 2^201123241443 is an apocalyptic number.

201123241443 is a deficient number, since it is larger than the sum of its proper divisors (89771883805).

201123241443 is a wasteful number, since it uses less digits than its factorization.

201123241443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29521274 (or 29521271 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 201123241443 its reverse (344142321102), we get a palindrome (545265562545).

The spelling of 201123241443 in words is "two hundred one billion, one hundred twenty-three million, two hundred forty-one thousand, four hundred forty-three".