43031523089 has 2 divisors, whose sum is σ = 43031523090. Its totient is φ = 43031523088.

The previous prime is 43031523077. The next prime is 43031523127. The reversal of 43031523089 is 98032513034.

It is an a-pointer prime, because the next prime (43031523127) can be obtained adding 43031523089 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43007708689 + 23814400 = 207383^2 + 4880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43031523089 is a prime.

It is not a weakly prime, because it can be changed into another prime (43031523289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21515761544 + 21515761545.

It is an arithmetic number, because the mean of its divisors is an integer number (21515761545).

Almost surely, 2^43031523089 is an apocalyptic number.

It is an amenable number.

43031523089 is a deficient number, since it is larger than the sum of its proper divisors (1).

43031523089 is an equidigital number, since it uses as much as digits as its factorization.

43031523089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 43031523089 in words is "forty-three billion, thirty-one million, five hundred twenty-three thousand, eighty-nine".