43109346337 has 2 divisors, whose sum is σ = 43109346338. Its totient is φ = 43109346336.

The previous prime is 43109346281. The next prime is 43109346349. The reversal of 43109346337 is 73364390134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42275060881 + 834285456 = 205609^2 + 28884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43109346337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43109346293 and 43109346302.

It is not a weakly prime, because it can be changed into another prime (43109346367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21554673168 + 21554673169.

It is an arithmetic number, because the mean of its divisors is an integer number (21554673169).

Almost surely, 2^43109346337 is an apocalyptic number.

It is an amenable number.

43109346337 is a deficient number, since it is larger than the sum of its proper divisors (1).

43109346337 is an equidigital number, since it uses as much as digits as its factorization.

43109346337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 43.

The spelling of 43109346337 in words is "forty-three billion, one hundred nine million, three hundred forty-six thousand, three hundred thirty-seven".