11020102021111 has 4 divisors (see below), whose sum is σ = 11020398911992. Its totient is φ = 11019805130232.

The previous prime is 11020102021091. The next prime is 11020102021189. The reversal of 11020102021111 is 11112020102011.

It is a happy number.

11020102021111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11020102021111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020102021091 and 11020102021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020102024111) 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, 148389756 + ... + 148464001.

It is an arithmetic number, because the mean of its divisors is an integer number (2755099727998).

Almost surely, 2^{11020102021111} is an apocalyptic number.

11020102021111 is a deficient number, since it is larger than the sum of its proper divisors (296890881).

11020102021111 is an equidigital number, since it uses as much as digits as its factorization.

11020102021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296890880.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11020102021111 its reverse (11112020102011), we get a palindrome (22132122123122).

The spelling of 11020102021111 in words is "eleven trillion, twenty billion, one hundred two million, twenty-one thousand, one hundred eleven".