11131111422 has 32 divisors (see below), whose sum is σ = 24990823200. Its totient is φ = 3672117504.

The previous prime is 11131111421. The next prime is 11131111423. The reversal of 11131111422 is 22411113111.

11131111422 is a `hidden beast` number, since 1 + 1 + 131 + 111 + 422 = 666.

It is an interprime number because it is at equal distance from previous prime (11131111421) and next prime (11131111423).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11131111395 and 11131111404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131111421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057297 + ... + 1067772.

It is an arithmetic number, because the mean of its divisors is an integer number (780963225).

Almost surely, 2^11131111422 is an apocalyptic number.

11131111422 is an abundant number, since it is smaller than the sum of its proper divisors (13859711778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11131111422 is a wasteful number, since it uses less digits than its factorization.

11131111422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125177 (or 2125171 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

Adding to 11131111422 its reverse (22411113111), we get a palindrome (33542224533).

The spelling of 11131111422 in words is "eleven billion, one hundred thirty-one million, one hundred eleven thousand, four hundred twenty-two".