201611023442 has 4 divisors (see below), whose sum is σ = 302416535166. Its totient is φ = 100805511720.

The previous prime is 201611023441. The next prime is 201611023457. The reversal of 201611023442 is 244320116102.

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., 132721047481 + 68889975961 = 364309^2 + 262469^2 .

It is not an unprimeable number, because it can be changed into a prime (201611023441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50402755859 + ... + 50402755862.

Almost surely, 2^201611023442 is an apocalyptic number.

201611023442 is a deficient number, since it is larger than the sum of its proper divisors (100805511724).

201611023442 is a wasteful number, since it uses less digits than its factorization.

201611023442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100805511723.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 201611023442 its reverse (244320116102), we get a palindrome (445931139544).

The spelling of 201611023442 in words is "two hundred one billion, six hundred eleven million, twenty-three thousand, four hundred forty-two".