131111422 has 16 divisors (see below), whose sum is σ = 212152752. Its totient is φ = 60410880.

The previous prime is 131111389. The next prime is 131111437. The reversal of 131111422 is 224111131.

It is a junction number, because it is equal to n+sod(n) for n = 131111396 and 131111405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12733 + ... + 20599.

It is an arithmetic number, because the mean of its divisors is an integer number (13259547).

Almost surely, 2^131111422 is an apocalyptic number.

131111422 is a deficient number, since it is larger than the sum of its proper divisors (81041330).

131111422 is a wasteful number, since it uses less digits than its factorization.

131111422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523.

The product of its digits is 48, while the sum is 16.

The square root of 131111422 is about 11450.3896003586. The cubic root of 131111422 is about 508.0192580584.

Adding to 131111422 its reverse (224111131), we get a palindrome (355222553).

The spelling of 131111422 in words is "one hundred thirty-one million, one hundred eleven thousand, four hundred twenty-two".