11020220311 has 4 divisors (see below), whose sum is σ = 11027880000. Its totient is φ = 11012560624.

The previous prime is 11020220303. The next prime is 11020220333. The reversal of 11020220311 is 11302202011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11302202011 = 43067 ⋅262433.

It is a cyclic number.

It is not a de Polignac number, because 11020220311 - 2³ = 11020220303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020220291 and 11020220300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020227311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3827686 + ... + 3830563.

It is an arithmetic number, because the mean of its divisors is an integer number (2756970000).

Almost surely, 2^11020220311 is an apocalyptic number.

11020220311 is a deficient number, since it is larger than the sum of its proper divisors (7659689).

11020220311 is an equidigital number, since it uses as much as digits as its factorization.

11020220311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7659688.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11020220311 its reverse (11302202011), we get a palindrome (22322422322).

The spelling of 11020220311 in words is "eleven billion, twenty million, two hundred twenty thousand, three hundred eleven".