11403323211 has 16 divisors (see below), whose sum is σ = 17614529024. Its totient is φ = 6426921024.

The previous prime is 11403323179. The next prime is 11403323227. The reversal of 11403323211 is 11232330411.

It is not a de Polignac number, because 11403323211 - 2⁵ = 11403323179 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11403323251) 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, 3717751 + ... + 3720816.

It is an arithmetic number, because the mean of its divisors is an integer number (1100908064).

Almost surely, 2^11403323211 is an apocalyptic number.

11403323211 is a deficient number, since it is larger than the sum of its proper divisors (6211205813).

11403323211 is an equidigital number, since it uses as much as digits as its factorization.

11403323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7438650.

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

Adding to 11403323211 its reverse (11232330411), we get a palindrome (22635653622).

The spelling of 11403323211 in words is "eleven billion, four hundred three million, three hundred twenty-three thousand, two hundred eleven".