131540102231 has 2 divisors, whose sum is σ = 131540102232. Its totient is φ = 131540102230.

The previous prime is 131540102227. The next prime is 131540102249. The reversal of 131540102231 is 132201045131.

It is a weak prime.

It is an emirp because it is prime and its reverse (132201045131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131540102231 - 2² = 131540102227 is a prime.

It is a super-2 number, since 2×131540102231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 131540102197 and 131540102206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131540152231) 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 as a sum of consecutive naturals, namely, 65770051115 + 65770051116.

It is an arithmetic number, because the mean of its divisors is an integer number (65770051116).

Almost surely, 2^131540102231 is an apocalyptic number.

131540102231 is a deficient number, since it is larger than the sum of its proper divisors (1).

131540102231 is an equidigital number, since it uses as much as digits as its factorization.

131540102231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 131540102231 its reverse (132201045131), we get a palindrome (263741147362).

The spelling of 131540102231 in words is "one hundred thirty-one billion, five hundred forty million, one hundred two thousand, two hundred thirty-one".