201043432242 has 20 divisors (see below), whose sum is σ = 450486209646. Its totient is φ = 67014477360.

The previous prime is 201043432229. The next prime is 201043432253. The reversal of 201043432242 is 242234340102.

201043432242 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 434 + 3 + 224 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104515777521 + 96527654721 = 323289^2 + 310689^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 620504259 + ... + 620504582.

Almost surely, 2^201043432242 is an apocalyptic number.

201043432242 is an abundant number, since it is smaller than the sum of its proper divisors (249442777404).

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

201043432242 is a wasteful number, since it uses less digits than its factorization.

201043432242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241008855 (or 1241008846 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 201043432242 its reverse (242234340102), we get a palindrome (443277772344).

The spelling of 201043432242 in words is "two hundred one billion, forty-three million, four hundred thirty-two thousand, two hundred forty-two".