131044430243 has 2 divisors, whose sum is σ = 131044430244. Its totient is φ = 131044430242.

The previous prime is 131044430239. The next prime is 131044430261. The reversal of 131044430243 is 342034440131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131044430243 - 2² = 131044430239 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (131044430233) 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, 65522215121 + 65522215122.

It is an arithmetic number, because the mean of its divisors is an integer number (65522215122).

Almost surely, 2^131044430243 is an apocalyptic number.

131044430243 is a deficient number, since it is larger than the sum of its proper divisors (1).

131044430243 is an equidigital number, since it uses as much as digits as its factorization.

131044430243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 131044430243 its reverse (342034440131), we get a palindrome (473078870374).

The spelling of 131044430243 in words is "one hundred thirty-one billion, forty-four million, four hundred thirty thousand, two hundred forty-three".