131031130031 has 4 divisors (see below), whose sum is σ = 132233250600. Its totient is φ = 129829009464.

The previous prime is 131031130003. The next prime is 131031130037. The reversal of 131031130031 is 130031130131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131031130031 is a prime.

It is a super-2 number, since 2×131031130031² (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 = 131031129991 and 131031130009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131031130037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601060121 + ... + 601060338.

It is an arithmetic number, because the mean of its divisors is an integer number (33058312650).

Almost surely, 2^131031130031 is an apocalyptic number.

131031130031 is a deficient number, since it is larger than the sum of its proper divisors (1202120569).

131031130031 is a wasteful number, since it uses less digits than its factorization.

131031130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202120568.

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

Adding to 131031130031 its reverse (130031130131), we get a palindrome (261062260162).

The spelling of 131031130031 in words is "one hundred thirty-one billion, thirty-one million, one hundred thirty thousand, thirty-one".