131025322991 has 2 divisors, whose sum is σ = 131025322992. Its totient is φ = 131025322990.

The previous prime is 131025322973. The next prime is 131025323041. The reversal of 131025322991 is 199223520131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131025322991 - 2⁶ = 131025322927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131025322921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65512661495 + 65512661496.

It is an arithmetic number, because the mean of its divisors is an integer number (65512661496).

Almost surely, 2^131025322991 is an apocalyptic number.

131025322991 is a deficient number, since it is larger than the sum of its proper divisors (1).

131025322991 is an equidigital number, since it uses as much as digits as its factorization.

131025322991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 131025322991 in words is "one hundred thirty-one billion, twenty-five million, three hundred twenty-two thousand, nine hundred ninety-one".