131196037681 has 2 divisors, whose sum is σ = 131196037682. Its totient is φ = 131196037680.

The previous prime is 131196037669. The next prime is 131196037727. The reversal of 131196037681 is 186730691131.

It is an a-pointer prime, because the next prime (131196037727) can be obtained adding 131196037681 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91107989281 + 40088048400 = 301841^2 + 200220^2 .

It is a cyclic number.

It is not a de Polignac number, because 131196037681 - 2¹⁷ = 131195906609 is a prime.

It is a super-2 number, since 2×131196037681² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131196037601) 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, 65598018840 + 65598018841.

It is an arithmetic number, because the mean of its divisors is an integer number (65598018841).

Almost surely, 2^131196037681 is an apocalyptic number.

It is an amenable number.

131196037681 is a deficient number, since it is larger than the sum of its proper divisors (1).

131196037681 is an equidigital number, since it uses as much as digits as its factorization.

131196037681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 131196037681 in words is "one hundred thirty-one billion, one hundred ninety-six million, thirty-seven thousand, six hundred eighty-one".