11012020021111 has 8 divisors (see below), whose sum is σ = 11021483158400. Its totient is φ = 11002560197688.

The previous prime is 11012020021061. The next prime is 11012020021157. The reversal of 11012020021111 is 11112002021011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11012020021111 - 2¹³ = 11012020012919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012020021091 and 11012020021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012020021811) 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, 5843470 + ... + 7494676.

It is an arithmetic number, because the mean of its divisors is an integer number (1377685394800).

Almost surely, 2^{11012020021111} is an apocalyptic number.

11012020021111 is a deficient number, since it is larger than the sum of its proper divisors (9463137289).

11012020021111 is a wasteful number, since it uses less digits than its factorization.

11012020021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656933.

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

Adding to 11012020021111 its reverse (11112002021011), we get a palindrome (22124022042122).

The spelling of 11012020021111 in words is "eleven trillion, twelve billion, twenty million, twenty-one thousand, one hundred eleven".