131113333231 has 8 divisors (see below), whose sum is σ = 138020626800. Its totient is φ = 124206698880.

The previous prime is 131113333223. The next prime is 131113333271. The reversal of 131113333231 is 132333311131.

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 131113333231 - 2³ = 131113333223 is a prime.

It is a super-2 number, since 2×131113333231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131113333196 and 131113333205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131113333271) 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, 273351 + ... + 580471.

It is an arithmetic number, because the mean of its divisors is an integer number (17252578350).

Almost surely, 2^131113333231 is an apocalyptic number.

131113333231 is a deficient number, since it is larger than the sum of its proper divisors (6907293569).

131113333231 is a wasteful number, since it uses less digits than its factorization.

131113333231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329609.

The product of its digits is 1458, while the sum is 25.

Adding to 131113333231 its reverse (132333311131), we get a palindrome (263446644362).

The spelling of 131113333231 in words is "one hundred thirty-one billion, one hundred thirteen million, three hundred thirty-three thousand, two hundred thirty-one".