2001120011042 has 32 divisors (see below), whose sum is σ = 3185616634992. Its totient is φ = 939522945024.

The previous prime is 2001120011041. The next prime is 2001120011047. The reversal of 2001120011042 is 2401100211002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1985171099521 + 15948911521 = 1408961^2 + 126289^2 .

It is not an unprimeable number, because it can be changed into a prime (2001120011041) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 28761248 + ... + 28830740.

Almost surely, 2^{2001120011042} is an apocalyptic number.

2001120011042 is a deficient number, since it is larger than the sum of its proper divisors (1184496623950).

2001120011042 is a wasteful number, since it uses less digits than its factorization.

2001120011042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71462.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001120011042 its reverse (2401100211002), we get a palindrome (4402220222044).

The spelling of 2001120011042 in words is "two trillion, one billion, one hundred twenty million, eleven thousand, forty-two".