20020100001011 has 4 divisors (see below), whose sum is σ = 21840109092024. Its totient is φ = 18200090910000.

The previous prime is 20020100000993. The next prime is 20020100001089. The reversal of 20020100001011 is 11010000102002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20020100001011 - 2⁶ = 20020100000947 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 20020100001011.

It is not an unprimeable number, because it can be changed into a prime (20020100001091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910004545490 + ... + 910004545511.

It is an arithmetic number, because the mean of its divisors is an integer number (5460027273006).

Almost surely, 2^{20020100001011} is an apocalyptic number.

20020100001011 is a deficient number, since it is larger than the sum of its proper divisors (1820009091013).

20020100001011 is a wasteful number, since it uses less digits than its factorization.

20020100001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820009091012.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20020100001011 its reverse (11010000102002), we get a palindrome (31030100103013).

The spelling of 20020100001011 in words is "twenty trillion, twenty billion, one hundred million, one thousand, eleven".