131113312131 has 8 divisors (see below), whose sum is σ = 174820898560. Its totient is φ = 87407300232.

The previous prime is 131113312129. The next prime is 131113312157. The reversal of 131113312131 is 131213311131.

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

It is not a de Polignac number, because 131113312131 - 2¹ = 131113312129 is a prime.

It is a super-2 number, since 2×131113312131² (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 = 131113312098 and 131113312107.

It is not an unprimeable number, because it can be changed into a prime (131113312181) 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, 183271 + ... + 543888.

It is an arithmetic number, because the mean of its divisors is an integer number (21852612320).

Almost surely, 2^131113312131 is an apocalyptic number.

131113312131 is a deficient number, since it is larger than the sum of its proper divisors (43707586429).

131113312131 is an equidigital number, since it uses as much as digits as its factorization.

131113312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787265.

The product of its digits is 162, while the sum is 21.

Adding to 131113312131 its reverse (131213311131), we get a palindrome (262326623262).

The spelling of 131113312131 in words is "one hundred thirty-one billion, one hundred thirteen million, three hundred twelve thousand, one hundred thirty-one".