11222443431 has 8 divisors (see below), whose sum is σ = 16625842160. Its totient is φ = 7481628936.

The previous prime is 11222443399. The next prime is 11222443457. The reversal of 11222443431 is 13434422211.

11222443431 is a `hidden beast` number, since 1 + 1 + 2 + 224 + 4 + 3 + 431 = 666.

It is not a de Polignac number, because 11222443431 - 2⁵ = 11222443399 is a prime.

It is a super-2 number, since 2×11222443431² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 415646053 = 11222443431 / (1 + 1 + 2 + 2 + 2 + 4 + 4 + 3 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222443395 and 11222443404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222443481) 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 7 ways as a sum of consecutive naturals, for example, 207823000 + ... + 207823053.

It is an arithmetic number, because the mean of its divisors is an integer number (2078230270).

Almost surely, 2^11222443431 is an apocalyptic number.

11222443431 is a deficient number, since it is larger than the sum of its proper divisors (5403398729).

11222443431 is an equidigital number, since it uses as much as digits as its factorization.

11222443431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415646062 (or 415646056 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 11222443431 its reverse (13434422211), we get a palindrome (24656865642).

The spelling of 11222443431 in words is "eleven billion, two hundred twenty-two million, four hundred forty-three thousand, four hundred thirty-one".