11023261 has 4 divisors (see below), whose sum is σ = 11030524. Its totient is φ = 11016000.

The previous prime is 11023253. The next prime is 11023289. The reversal of 11023261 is 16232011.

11023261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2232036 + 8791225 = 1494^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 11023261 - 2³ = 11023253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023231) 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, 390 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (2757631).

Almost surely, 2^11023261 is an apocalyptic number.

It is an amenable number.

11023261 is a deficient number, since it is larger than the sum of its proper divisors (7263).

11023261 is an equidigital number, since it uses as much as digits as its factorization.

11023261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 11023261 is about 3320.1296661426. The cubic root of 11023261 is about 222.5546623263.

Adding to 11023261 its reverse (16232011), we get a palindrome (27255272).

The spelling of 11023261 in words is "eleven million, twenty-three thousand, two hundred sixty-one".