11221340403 has 24 divisors (see below), whose sum is σ = 18743341008. Its totient is φ = 5918947776.

The previous prime is 11221340369. The next prime is 11221340419. The reversal of 11221340403 is 30404312211.

It is not a de Polignac number, because 11221340403 - 2⁹ = 11221339891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11221340403.

It is not an unprimeable number, because it can be changed into a prime (11221340423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2934076 + ... + 2937897.

It is an arithmetic number, because the mean of its divisors is an integer number (780972542).

Almost surely, 2^11221340403 is an apocalyptic number.

11221340403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11221340403 is a deficient number, since it is larger than the sum of its proper divisors (7522000605).

11221340403 is a wasteful number, since it uses less digits than its factorization.

11221340403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872003 (or 5871996 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11221340403 its reverse (30404312211), we get a palindrome (41625652614).

The spelling of 11221340403 in words is "eleven billion, two hundred twenty-one million, three hundred forty thousand, four hundred three".