11023521617 has 4 divisors (see below), whose sum is σ = 11032762980. Its totient is φ = 11014280256.

The previous prime is 11023521589. The next prime is 11023521623. The reversal of 11023521617 is 71612532011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1907855041 + 9115666576 = 43679^2 + 95476^2 .

It is a cyclic number.

It is not a de Polignac number, because 11023521617 - 2²² = 11019327313 is a prime.

It is a super-3 number, since 3×11023521617³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11023521617.

It is not an unprimeable number, because it can be changed into a prime (11023521637) 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, 4618892 + ... + 4621277.

It is an arithmetic number, because the mean of its divisors is an integer number (2758190745).

Almost surely, 2^11023521617 is an apocalyptic number.

It is an amenable number.

11023521617 is a deficient number, since it is larger than the sum of its proper divisors (9241363).

11023521617 is an equidigital number, since it uses as much as digits as its factorization.

11023521617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9241362.

The product of its (nonzero) digits is 2520, while the sum is 29.

The spelling of 11023521617 in words is "eleven billion, twenty-three million, five hundred twenty-one thousand, six hundred seventeen".