131320020043 has 2 divisors, whose sum is σ = 131320020044. Its totient is φ = 131320020042.

The previous prime is 131320020017. The next prime is 131320020059. The reversal of 131320020043 is 340020023131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131320020043 - 2⁹ = 131320019531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131320020043.

It is not a weakly prime, because it can be changed into another prime (131320021043) 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, 65660010021 + 65660010022.

It is an arithmetic number, because the mean of its divisors is an integer number (65660010022).

Almost surely, 2^131320020043 is an apocalyptic number.

131320020043 is a deficient number, since it is larger than the sum of its proper divisors (1).

131320020043 is an equidigital number, since it uses as much as digits as its factorization.

131320020043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 131320020043 its reverse (340020023131), we get a palindrome (471340043174).

The spelling of 131320020043 in words is "one hundred thirty-one billion, three hundred twenty million, twenty thousand, forty-three".