43344103997 has 2 divisors, whose sum is σ = 43344103998. Its totient is φ = 43344103996.

The previous prime is 43344103969. The next prime is 43344104021. The reversal of 43344103997 is 79930144334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26761360921 + 16582743076 = 163589^2 + 128774^2 .

It is a cyclic number.

It is not a de Polignac number, because 43344103997 - 2⁸ = 43344103741 is a prime.

It is a super-2 number, since 2×43344103997² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43344103937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21672051998 + 21672051999.

It is an arithmetic number, because the mean of its divisors is an integer number (21672051999).

Almost surely, 2^43344103997 is an apocalyptic number.

It is an amenable number.

43344103997 is a deficient number, since it is larger than the sum of its proper divisors (1).

43344103997 is an equidigital number, since it uses as much as digits as its factorization.

43344103997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 43344103997 in words is "forty-three billion, three hundred forty-four million, one hundred three thousand, nine hundred ninety-seven".