43124130010991 has 2 divisors, whose sum is σ = 43124130010992. Its totient is φ = 43124130010990.

The previous prime is 43124130010987. The next prime is 43124130011059. The reversal of 43124130010991 is 19901003142134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43124130010991 - 2² = 43124130010987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43124130030991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21562065005495 + 21562065005496.

It is an arithmetic number, because the mean of its divisors is an integer number (21562065005496).

Almost surely, 2^{43124130010991} is an apocalyptic number.

43124130010991 is a deficient number, since it is larger than the sum of its proper divisors (1).

43124130010991 is an equidigital number, since it uses as much as digits as its factorization.

43124130010991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 43124130010991 in words is "forty-three trillion, one hundred twenty-four billion, one hundred thirty million, ten thousand, nine hundred ninety-one".