20111012002011 has 8 divisors (see below), whose sum is σ = 30645351622144. Its totient is φ = 11492006858280.

The previous prime is 20111012001991. The next prime is 20111012002063. The reversal of 20111012002011 is 11020021011102.

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

It is not a de Polignac number, because 20111012002011 - 2⁶ = 20111012001947 is a prime.

It is a super-3 number, since 3×20111012002011³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20111012004011) 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, 478833619075 + ... + 478833619116.

It is an arithmetic number, because the mean of its divisors is an integer number (3830668952768).

Almost surely, 2^{20111012002011} is an apocalyptic number.

20111012002011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20111012002011 is a deficient number, since it is larger than the sum of its proper divisors (10534339620133).

20111012002011 is an equidigital number, since it uses as much as digits as its factorization.

20111012002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957667238201.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20111012002011 its reverse (11020021011102), we get a palindrome (31131033013113).

Subtracting from 20111012002011 its reverse (11020021011102), we obtain a palindrome (9090990990909).

The spelling of 20111012002011 in words is "twenty trillion, one hundred eleven billion, twelve million, two thousand, eleven".