11020120020011 has 4 divisors (see below), whose sum is σ = 11375607762624. Its totient is φ = 10664632277400.

The previous prime is 11020120019971. The next prime is 11020120020047. The reversal of 11020120020011 is 11002002102011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11020120020011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020120019974 and 11020120020001.

It is not an unprimeable number, because it can be changed into a prime (11020120025011) 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, 177743871260 + ... + 177743871321.

It is an arithmetic number, because the mean of its divisors is an integer number (2843901940656).

Almost surely, 2^{11020120020011} is an apocalyptic number.

11020120020011 is a deficient number, since it is larger than the sum of its proper divisors (355487742613).

11020120020011 is an equidigital number, since it uses as much as digits as its factorization.

11020120020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355487742612.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11020120020011 its reverse (11002002102011), we get a palindrome (22022122122022).

The spelling of 11020120020011 in words is "eleven trillion, twenty billion, one hundred twenty million, twenty thousand, eleven".