11421323103 has 16 divisors (see below), whose sum is σ = 15615084800. Its totient is φ = 7423232256.

The previous prime is 11421323101. The next prime is 11421323159. The reversal of 11421323103 is 30132312411.

It is not a de Polignac number, because 11421323103 - 2¹ = 11421323101 is a prime.

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 11421323103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421323101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273403 + ... + 312396.

It is an arithmetic number, because the mean of its divisors is an integer number (975942800).

Almost surely, 2^11421323103 is an apocalyptic number.

11421323103 is a deficient number, since it is larger than the sum of its proper divisors (4193761697).

11421323103 is an equidigital number, since it uses as much as digits as its factorization.

11421323103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585966.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11421323103 its reverse (30132312411), we get a palindrome (41553635514).

The spelling of 11421323103 in words is "eleven billion, four hundred twenty-one million, three hundred twenty-three thousand, one hundred three".