2111110020011 has 4 divisors (see below), whose sum is σ = 2113675160592. Its totient is φ = 2108544879432.

The previous prime is 2111110019971. The next prime is 2111110020079. The reversal of 2111110020011 is 1100200111112.

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 2111110020011 - 2¹⁴ = 2111110003627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111110019974 and 2111110020001.

It is not an unprimeable number, because it can be changed into a prime (2111110070011) 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, 1282569056 + ... + 1282570701.

It is an arithmetic number, because the mean of its divisors is an integer number (528418790148).

Almost surely, 2^{2111110020011} is an apocalyptic number.

2111110020011 is a deficient number, since it is larger than the sum of its proper divisors (2565140581).

2111110020011 is an equidigital number, since it uses as much as digits as its factorization.

2111110020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565140580.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2111110020011 its reverse (1100200111112), we get a palindrome (3211310131123).

The spelling of 2111110020011 in words is "two trillion, one hundred eleven billion, one hundred ten million, twenty thousand, eleven".