131312180243 has 2 divisors, whose sum is σ = 131312180244. Its totient is φ = 131312180242.

The previous prime is 131312180227. The next prime is 131312180257. The reversal of 131312180243 is 342081213131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131312180243 - 2⁴ = 131312180227 is a prime.

It is not a weakly prime, because it can be changed into another prime (131312180203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65656090121 + 65656090122.

It is an arithmetic number, because the mean of its divisors is an integer number (65656090122).

Almost surely, 2^131312180243 is an apocalyptic number.

131312180243 is a deficient number, since it is larger than the sum of its proper divisors (1).

131312180243 is an equidigital number, since it uses as much as digits as its factorization.

131312180243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 131312180243 its reverse (342081213131), we get a palindrome (473393393374).

The spelling of 131312180243 in words is "one hundred thirty-one billion, three hundred twelve million, one hundred eighty thousand, two hundred forty-three".