131111122 has 8 divisors (see below), whose sum is σ = 196782336. Its totient is φ = 65517012.

The previous prime is 131111119. The next prime is 131111129. The reversal of 131111122 is 221111131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131111129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14818 + ... + 21949.

It is an arithmetic number, because the mean of its divisors is an integer number (24597792).

Almost surely, 2^131111122 is an apocalyptic number.

131111122 is a deficient number, since it is larger than the sum of its proper divisors (65671214).

131111122 is a wasteful number, since it uses less digits than its factorization.

131111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38552.

The product of its digits is 12, while the sum is 13.

The square root of 131111122 is about 11450.3765003602. The cubic root of 131111122 is about 508.0188705868.

Adding to 131111122 its reverse (221111131), we get a palindrome (352222253).

Subtracting 131111122 from its reverse (221111131), we obtain a palindrome (90000009).

The spelling of 131111122 in words is "one hundred thirty-one million, one hundred eleven thousand, one hundred twenty-two".