11011010111111 has 4 divisors (see below), whose sum is σ = 11011052947224. Its totient is φ = 11010967275000.

The previous prime is 11011010111083. The next prime is 11011010111119. The reversal of 11011010111111 is 11111101011011.

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 11011010111111 - 2¹⁴ = 11011010094727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011010111092 and 11011010111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011010111119) 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, 21030140 + ... + 21547361.

It is an arithmetic number, because the mean of its divisors is an integer number (2752763236806).

Almost surely, 2^{11011010111111} is an apocalyptic number.

11011010111111 is a deficient number, since it is larger than the sum of its proper divisors (42836113).

11011010111111 is an equidigital number, since it uses as much as digits as its factorization.

11011010111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42836112.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 11011010111111 its reverse (11111101011011), we get a palindrome (22122111122122).

The spelling of 11011010111111 in words is "eleven trillion, eleven billion, ten million, one hundred eleven thousand, one hundred eleven".