11203222131 has 16 divisors (see below), whose sum is σ = 16831134720. Its totient is φ = 7363618920.

The previous prime is 11203222103. The next prime is 11203222133. The reversal of 11203222131 is 13122230211.

It is not a de Polignac number, because 11203222131 - 2⁶ = 11203222067 is a prime.

It is a super-2 number, since 2×11203222131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11203222133) 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, 2920155 + ... + 2923988.

It is an arithmetic number, because the mean of its divisors is an integer number (1051945920).

Almost surely, 2^11203222131 is an apocalyptic number.

11203222131 is a deficient number, since it is larger than the sum of its proper divisors (5627912589).

11203222131 is an equidigital number, since it uses as much as digits as its factorization.

11203222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844223 (or 5844217 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11203222131 its reverse (13122230211), we get a palindrome (24325452342).

The spelling of 11203222131 in words is "eleven billion, two hundred three million, two hundred twenty-two thousand, one hundred thirty-one".