11221103131 has 32 divisors (see below), whose sum is σ = 13248811008. Its totient is φ = 9305462400.

The previous prime is 11221103123. The next prime is 11221103143. The reversal of 11221103131 is 13130112211.

It is a happy number.

11221103131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11221103131 - 2³ = 11221103123 is a prime.

It is a super-2 number, since 2×11221103131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221163131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13002006 + ... + 13002868.

It is an arithmetic number, because the mean of its divisors is an integer number (414025344).

Almost surely, 2^11221103131 is an apocalyptic number.

11221103131 is a deficient number, since it is larger than the sum of its proper divisors (2027707877).

11221103131 is a wasteful number, since it uses less digits than its factorization.

11221103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11221103131 its reverse (13130112211), we get a palindrome (24351215342).

The spelling of 11221103131 in words is "eleven billion, two hundred twenty-one million, one hundred three thousand, one hundred thirty-one".