11011023 has 6 divisors (see below), whose sum is σ = 15904824. Its totient is φ = 7340676.

The previous prime is 11011003. The next prime is 11011031. The reversal of 11011023 is 32011011.

It is not a de Polignac number, because 11011023 - 2⁹ = 11010511 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: 1223447 = 11011023 / (1 + 1 + 0 + 1 + 1 + 0 + 2 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 11010996 and 11011014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611715 + ... + 611732.

It is an arithmetic number, because the mean of its divisors is an integer number (2650804).

Almost surely, 2^11011023 is an apocalyptic number.

11011023 is a deficient number, since it is larger than the sum of its proper divisors (4893801).

11011023 is a wasteful number, since it uses less digits than its factorization.

11011023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223453 (or 1223450 counting only the distinct ones).

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

The square root of 11011023 is about 3318.2861540259. The cubic root of 11011023 is about 222.4722719308.

Adding to 11011023 its reverse (32011011), we get a palindrome (43022034).

The spelling of 11011023 in words is "eleven million, eleven thousand, twenty-three".