11111020202011 has 4 divisors (see below), whose sum is σ = 11111033333224. Its totient is φ = 11111007070800.

The previous prime is 11111020201997. The next prime is 11111020202041. The reversal of 11111020202011 is 11020202011111.

It is a happy number.

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 11111020202011 - 2⁵ = 11111020201979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111020201982 and 11111020202000.

It is not an unprimeable number, because it can be changed into a prime (11111020202041) 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, 5201970 + ... + 7020151.

It is an arithmetic number, because the mean of its divisors is an integer number (2777758333306).

Almost surely, 2^{11111020202011} is an apocalyptic number.

11111020202011 is a deficient number, since it is larger than the sum of its proper divisors (13131213).

11111020202011 is an equidigital number, since it uses as much as digits as its factorization.

11111020202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13131212.

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

Adding to 11111020202011 its reverse (11020202011111), we get a palindrome (22131222213122).

It can be divided in two parts, 111 and 11020202011, that multiplied together give a palindrome (1223242423221).

The spelling of 11111020202011 in words is "eleven trillion, one hundred eleven billion, twenty million, two hundred two thousand, eleven".