43001010397 has 2 divisors, whose sum is σ = 43001010398. Its totient is φ = 43001010396.

The previous prime is 43001010361. The next prime is 43001010413. The reversal of 43001010397 is 79301010034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42856866361 + 144144036 = 207019^2 + 12006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43001010397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43001010317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21500505198 + 21500505199.

It is an arithmetic number, because the mean of its divisors is an integer number (21500505199).

Almost surely, 2^43001010397 is an apocalyptic number.

It is an amenable number.

43001010397 is a deficient number, since it is larger than the sum of its proper divisors (1).

43001010397 is an equidigital number, since it uses as much as digits as its factorization.

43001010397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The spelling of 43001010397 in words is "forty-three billion, one million, ten thousand, three hundred ninety-seven".