131778321224299 has 2 divisors, whose sum is σ = 131778321224300. Its totient is φ = 131778321224298.

The previous prime is 131778321224267. The next prime is 131778321224317. The reversal of 131778321224299 is 992422123877131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131778321224299 - 2⁵ = 131778321224267 is a prime.

It is not a weakly prime, because it can be changed into another prime (131778321222299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65889160612149 + 65889160612150.

It is an arithmetic number, because the mean of its divisors is an integer number (65889160612150).

Almost surely, 2^{131778321224299} is an apocalyptic number.

131778321224299 is a deficient number, since it is larger than the sum of its proper divisors (1).

131778321224299 is an equidigital number, since it uses as much as digits as its factorization.

131778321224299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 61.

The spelling of 131778321224299 in words is "one hundred thirty-one trillion, seven hundred seventy-eight billion, three hundred twenty-one million, two hundred twenty-four thousand, two hundred ninety-nine".