11001020101111 has 4 divisors (see below), whose sum is σ = 11103833373192. Its totient is φ = 10898206829032.

The previous prime is 11001020101073. The next prime is 11001020101151. The reversal of 11001020101111 is 11110102010011.

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-11001020101111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001020101151) 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, 51406635880 + ... + 51406636093.

It is an arithmetic number, because the mean of its divisors is an integer number (2775958343298).

Almost surely, 2^{11001020101111} is an apocalyptic number.

11001020101111 is a deficient number, since it is larger than the sum of its proper divisors (102813272081).

11001020101111 is a wasteful number, since it uses less digits than its factorization.

11001020101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102813272080.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11001020101111 its reverse (11110102010011), we get a palindrome (22111122111122).

The spelling of 11001020101111 in words is "eleven trillion, one billion, twenty million, one hundred one thousand, one hundred eleven".