11020311 has 6 divisors (see below), whose sum is σ = 15918240. Its totient is φ = 7346868.

The previous prime is 11020309. The next prime is 11020313. The reversal of 11020311 is 11302011.

It is an interprime number because it is at equal distance from previous prime (11020309) and next prime (11020313).

It is not a de Polignac number, because 11020311 - 2¹ = 11020309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1224479 = 11020311 / (1 + 1 + 0 + 2 + 0 + 3 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 11020293 and 11020302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612231 + ... + 612248.

It is an arithmetic number, because the mean of its divisors is an integer number (2653040).

Almost surely, 2^11020311 is an apocalyptic number.

11020311 is a deficient number, since it is larger than the sum of its proper divisors (4897929).

11020311 is a wasteful number, since it uses less digits than its factorization.

11020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224485 (or 1224482 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 11020311 is about 3319.6853766585. The cubic root of 11020311 is about 222.5348074990.

Adding to 11020311 its reverse (11302011), we get a palindrome (22322322).

The spelling of 11020311 in words is "eleven million, twenty thousand, three hundred eleven".