131201204343491 has 2 divisors, whose sum is σ = 131201204343492. Its totient is φ = 131201204343490.

The previous prime is 131201204343439. The next prime is 131201204343511. The reversal of 131201204343491 is 194343402102131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131201204343491 - 2⁶ = 131201204343427 is a prime.

It is not a weakly prime, because it can be changed into another prime (131201204343421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600602171745 + 65600602171746.

It is an arithmetic number, because the mean of its divisors is an integer number (65600602171746).

Almost surely, 2^{131201204343491} is an apocalyptic number.

131201204343491 is a deficient number, since it is larger than the sum of its proper divisors (1).

131201204343491 is an equidigital number, since it uses as much as digits as its factorization.

131201204343491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 131201204343491 in words is "one hundred thirty-one trillion, two hundred one billion, two hundred four million, three hundred forty-three thousand, four hundred ninety-one".