2001071042 has 16 divisors (see below), whose sum is σ = 3016524672. Its totient is φ = 995574000.

The previous prime is 2001071041. The next prime is 2001071053. The reversal of 2001071042 is 2401701002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001071042.

It is not an unprimeable number, because it can be changed into a prime (2001071041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437813 + ... + 442359.

It is an arithmetic number, because the mean of its divisors is an integer number (188532792).

Almost surely, 2^2001071042 is an apocalyptic number.

2001071042 is a deficient number, since it is larger than the sum of its proper divisors (1015453630).

2001071042 is a wasteful number, since it uses less digits than its factorization.

2001071042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2001071042 is about 44733.3325608544. The cubic root of 2001071042 is about 1260.1459144866.

Adding to 2001071042 its reverse (2401701002), we get a palindrome (4402772044).

The spelling of 2001071042 in words is "two billion, one million, seventy-one thousand, forty-two".