131113321 has 8 divisors (see below), whose sum is σ = 138790080. Its totient is φ = 123646992.

The previous prime is 131113303. The next prime is 131113349. The reversal of 131113321 is 123311131.

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 131113321 - 2⁵ = 131113289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131113295 and 131113304.

It is not an unprimeable number, because it can be changed into a prime (131113391) 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 7 ways as a sum of consecutive naturals, for example, 51325 + ... + 53818.

It is an arithmetic number, because the mean of its divisors is an integer number (17348760).

Almost surely, 2^131113321 is an apocalyptic number.

It is an amenable number.

131113321 is a deficient number, since it is larger than the sum of its proper divisors (7676759).

131113321 is a wasteful number, since it uses less digits than its factorization.

131113321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105215.

The product of its digits is 54, while the sum is 16.

The square root of 131113321 is about 11450.4725230010. The cubic root of 131113321 is about 508.0217107405.

Adding to 131113321 its reverse (123311131), we get a palindrome (254424452).

The spelling of 131113321 in words is "one hundred thirty-one million, one hundred thirteen thousand, three hundred twenty-one".