201101443442 has 4 divisors (see below), whose sum is σ = 301652165166. Its totient is φ = 100550721720.

The previous prime is 201101443349. The next prime is 201101443511. The reversal of 201101443442 is 244344101102.

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., 139076039041 + 62025404401 = 372929^2 + 249049^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50275360859 + ... + 50275360862.

Almost surely, 2^201101443442 is an apocalyptic number.

201101443442 is a deficient number, since it is larger than the sum of its proper divisors (100550721724).

201101443442 is a wasteful number, since it uses less digits than its factorization.

201101443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100550721723.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 201101443442 its reverse (244344101102), we get a palindrome (445445544544).

The spelling of 201101443442 in words is "two hundred one billion, one hundred one million, four hundred forty-three thousand, four hundred forty-two".