131145206131 has 2 divisors, whose sum is σ = 131145206132. Its totient is φ = 131145206130.

The previous prime is 131145206117. The next prime is 131145206177. The reversal of 131145206131 is 131602541131.

It is a weak prime.

It is an emirp because it is prime and its reverse (131602541131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131145206131 - 2⁵ = 131145206099 is a prime.

It is a super-2 number, since 2×131145206131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131145206131.

It is not a weakly prime, because it can be changed into another prime (131145276131) 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, 65572603065 + 65572603066.

It is an arithmetic number, because the mean of its divisors is an integer number (65572603066).

Almost surely, 2^131145206131 is an apocalyptic number.

131145206131 is a deficient number, since it is larger than the sum of its proper divisors (1).

131145206131 is an equidigital number, since it uses as much as digits as its factorization.

131145206131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 131145206131 its reverse (131602541131), we get a palindrome (262747747262).

The spelling of 131145206131 in words is "one hundred thirty-one billion, one hundred forty-five million, two hundred six thousand, one hundred thirty-one".