11003216501 has 4 divisors (see below), whose sum is σ = 11003865600. Its totient is φ = 11002567404.

The previous prime is 11003216467. The next prime is 11003216503. The reversal of 11003216501 is 10561230011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10561230011 = 317 ⋅33316183.

It is a cyclic number.

It is not a de Polignac number, because 11003216501 - 2²² = 10999022197 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 (11003216503) 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, 298421 + ... + 333258.

It is an arithmetic number, because the mean of its divisors is an integer number (2750966400).

Almost surely, 2^11003216501 is an apocalyptic number.

It is an amenable number.

11003216501 is a deficient number, since it is larger than the sum of its proper divisors (649099).

11003216501 is an equidigital number, since it uses as much as digits as its factorization.

11003216501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649098.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 11003216501 its reverse (10561230011), we get a palindrome (21564446512).

The spelling of 11003216501 in words is "eleven billion, three million, two hundred sixteen thousand, five hundred one".