201322434442 has 4 divisors (see below), whose sum is σ = 301983651666. Its totient is φ = 100661217220.

The previous prime is 201322434373. The next prime is 201322434451. The reversal of 201322434442 is 244434223102.

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., 184632636721 + 16689797721 = 429689^2 + 129189^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50330608609 + ... + 50330608612.

Almost surely, 2^201322434442 is an apocalyptic number.

201322434442 is a deficient number, since it is larger than the sum of its proper divisors (100661217224).

201322434442 is a wasteful number, since it uses less digits than its factorization.

201322434442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100661217223.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 201322434442 its reverse (244434223102), we get a palindrome (445756657544).

The spelling of 201322434442 in words is "two hundred one billion, three hundred twenty-two million, four hundred thirty-four thousand, four hundred forty-two".