11201623 has 4 divisors (see below), whose sum is σ = 11860560. Its totient is φ = 10542688.

The previous prime is 11201611. The next prime is 11201653. The reversal of 11201623 is 32610211.

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 11201623 - 2⁵ = 11201591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11201597 and 11201606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201653) 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, 329443 + ... + 329476.

It is an arithmetic number, because the mean of its divisors is an integer number (2965140).

Almost surely, 2^11201623 is an apocalyptic number.

11201623 is a deficient number, since it is larger than the sum of its proper divisors (658937).

11201623 is an equidigital number, since it uses as much as digits as its factorization.

11201623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658936.

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

The square root of 11201623 is about 3346.8825793565. The cubic root of 11201623 is about 223.7485952285.

Adding to 11201623 its reverse (32610211), we get a palindrome (43811834).

The spelling of 11201623 in words is "eleven million, two hundred one thousand, six hundred twenty-three".