43131122443 has 2 divisors, whose sum is σ = 43131122444. Its totient is φ = 43131122442.

The previous prime is 43131122429. The next prime is 43131122453. The reversal of 43131122443 is 34422113134.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43131122443 - 2²⁵ = 43097568011 is a prime.

It is not a weakly prime, because it can be changed into another prime (43131122413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21565561221 + 21565561222.

It is an arithmetic number, because the mean of its divisors is an integer number (21565561222).

Almost surely, 2^43131122443 is an apocalyptic number.

43131122443 is a deficient number, since it is larger than the sum of its proper divisors (1).

43131122443 is an equidigital number, since it uses as much as digits as its factorization.

43131122443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

Adding to 43131122443 its reverse (34422113134), we get a palindrome (77553235577).

The spelling of 43131122443 in words is "forty-three billion, one hundred thirty-one million, one hundred twenty-two thousand, four hundred forty-three".