11022005623 has 4 divisors (see below), whose sum is σ = 11065918248. Its totient is φ = 10978093000.

The previous prime is 11022005597. The next prime is 11022005633. The reversal of 11022005623 is 32650022011.

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

It is a cyclic number.

It is not a de Polignac number, because 11022005623 - 2¹³ = 11021997431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022005594 and 11022005603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022005633) 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, 21955936 + ... + 21956437.

It is an arithmetic number, because the mean of its divisors is an integer number (2766479562).

Almost surely, 2^11022005623 is an apocalyptic number.

11022005623 is a deficient number, since it is larger than the sum of its proper divisors (43912625).

11022005623 is an equidigital number, since it uses as much as digits as its factorization.

11022005623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43912624.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 11022005623 its reverse (32650022011), we get a palindrome (43672027634).

The spelling of 11022005623 in words is "eleven billion, twenty-two million, five thousand, six hundred twenty-three".