2001020120011 has 8 divisors (see below), whose sum is σ = 2311338748464. Its totient is φ = 1712102776320.

The previous prime is 2001020119873. The next prime is 2001020120051. The reversal of 2001020120011 is 1100210201002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001020120011 - 2⁹ = 2001020119499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001020120011.

It is not an unprimeable number, because it can be changed into a prime (2001020120051) 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, 5350320990 + ... + 5350321363.

It is an arithmetic number, because the mean of its divisors is an integer number (288917343558).

Almost surely, 2^{2001020120011} is an apocalyptic number.

2001020120011 is a deficient number, since it is larger than the sum of its proper divisors (310318628453).

2001020120011 is a wasteful number, since it uses less digits than its factorization.

2001020120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10700642381.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2001020120011 its reverse (1100210201002), we get a palindrome (3101230321013).

The spelling of 2001020120011 in words is "two trillion, one billion, twenty million, one hundred twenty thousand, eleven".