11020313011 has 4 divisors (see below), whose sum is σ = 11029223152. Its totient is φ = 11011402872.

The previous prime is 11020312999. The next prime is 11020313021. The reversal of 11020313011 is 11031302011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11031302011 = 97 ⋅113724763.

It is a cyclic number.

It is not a de Polignac number, because 11020313011 - 2¹⁹ = 11019788723 is a prime.

It is a super-2 number, since 2×11020313011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020312982 and 11020313000.

It is not an unprimeable number, because it can be changed into a prime (11020313021) 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, 4453215 + ... + 4455688.

It is an arithmetic number, because the mean of its divisors is an integer number (2757305788).

Almost surely, 2^11020313011 is an apocalyptic number.

11020313011 is a deficient number, since it is larger than the sum of its proper divisors (8910141).

11020313011 is an equidigital number, since it uses as much as digits as its factorization.

11020313011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910140.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11020313011 its reverse (11031302011), we get a palindrome (22051615022).

The spelling of 11020313011 in words is "eleven billion, twenty million, three hundred thirteen thousand, eleven".