20020010911 has 8 divisors (see below), whose sum is σ = 21202245504. Its totient is φ = 18863759640.

The previous prime is 20020010891. The next prime is 20020010929. The reversal of 20020010911 is 11901002002.

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 20020010911 - 2⁷ = 20020010783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020010111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6494245 + ... + 6497326.

It is an arithmetic number, because the mean of its divisors is an integer number (2650280688).

Almost surely, 2^20020010911 is an apocalyptic number.

20020010911 is a deficient number, since it is larger than the sum of its proper divisors (1182234593).

20020010911 is a wasteful number, since it uses less digits than its factorization.

20020010911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12991661.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20020010911 its reverse (11901002002), we get a palindrome (31921012913).

The spelling of 20020010911 in words is "twenty billion, twenty million, ten thousand, nine hundred eleven".