131331113 has 8 divisors (see below), whose sum is σ = 135512832. Its totient is φ = 127207296.

The previous prime is 131331061. The next prime is 131331119. The reversal of 131331113 is 311133131.

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

It is a cyclic number.

It is not a de Polignac number, because 131331113 - 2¹⁸ = 131068969 is a prime.

It is a super-2 number, since 2×131331113² = 34495722483637538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131331091 and 131331100.

It is not an unprimeable number, because it can be changed into a prime (131331119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9845 + ... + 18962.

It is an arithmetic number, because the mean of its divisors is an integer number (16939104).

Almost surely, 2^131331113 is an apocalyptic number.

It is an amenable number.

131331113 is a deficient number, since it is larger than the sum of its proper divisors (4181719).

131331113 is an equidigital number, since it uses as much as digits as its factorization.

131331113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28951.

The product of its digits is 81, while the sum is 17.

The square root of 131331113 is about 11459.9787521618. The cubic root of 131331113 is about 508.3028463187.

Adding to 131331113 its reverse (311133131), we get a palindrome (442464244).

The spelling of 131331113 in words is "one hundred thirty-one million, three hundred thirty-one thousand, one hundred thirteen".