10020120020011 has 4 divisors (see below), whose sum is σ = 10253146067032. Its totient is φ = 9787093972992.

The previous prime is 10020120019981. The next prime is 10020120020039. The reversal of 10020120020011 is 11002002102001.

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 10020120020011 - 2⁹ = 10020120019499 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 10020120020011.

It is not an unprimeable number, because it can be changed into a prime (10020120020051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116513023446 + ... + 116513023531.

It is an arithmetic number, because the mean of its divisors is an integer number (2563286516758).

Almost surely, 2^{10020120020011} is an apocalyptic number.

10020120020011 is a deficient number, since it is larger than the sum of its proper divisors (233026047021).

10020120020011 is an equidigital number, since it uses as much as digits as its factorization.

10020120020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233026047020.

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

Adding to 10020120020011 its reverse (11002002102001), we get a palindrome (21022122122012).

The spelling of 10020120020011 in words is "ten trillion, twenty billion, one hundred twenty million, twenty thousand, eleven".