201130502042 has 4 divisors (see below), whose sum is σ = 301695753066. Its totient is φ = 100565251020.

The previous prime is 201130502039. The next prime is 201130502071. The reversal of 201130502042 is 240205031102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 196354448161 + 4776053881 = 443119^2 + 69109^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50282625509 + ... + 50282625512.

Almost surely, 2^201130502042 is an apocalyptic number.

201130502042 is a deficient number, since it is larger than the sum of its proper divisors (100565251024).

201130502042 is a wasteful number, since it uses less digits than its factorization.

201130502042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100565251023.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 201130502042 its reverse (240205031102), we get a palindrome (441335533144).

The spelling of 201130502042 in words is "two hundred one billion, one hundred thirty million, five hundred two thousand, forty-two".