131311122 has 8 divisors (see below), whose sum is σ = 262622256. Its totient is φ = 43770372.

The previous prime is 131311099. The next prime is 131311123. The reversal of 131311122 is 221113131.

It is a happy number.

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

131311122 is an admirable number.

It is a super-2 number, since 2×131311122² = 34485221521797768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (131311123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10942588 + ... + 10942599.

It is an arithmetic number, because the mean of its divisors is an integer number (32827782).

Almost surely, 2^131311122 is an apocalyptic number.

131311122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131311122 is a wasteful number, since it uses less digits than its factorization.

131311122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21885192.

The product of its digits is 36, while the sum is 15.

The square root of 131311122 is about 11459.1065096717. The cubic root of 131311122 is about 508.2770540100.

Adding to 131311122 its reverse (221113131), we get a palindrome (352424253).

The spelling of 131311122 in words is "one hundred thirty-one million, three hundred eleven thousand, one hundred twenty-two".