43109346823 has 2 divisors, whose sum is σ = 43109346824. Its totient is φ = 43109346822.

The previous prime is 43109346809. The next prime is 43109346851. The reversal of 43109346823 is 32864390134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43109346823 - 2³³ = 34519412231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43109346823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43109346023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21554673411 + 21554673412.

It is an arithmetic number, because the mean of its divisors is an integer number (21554673412).

Almost surely, 2^43109346823 is an apocalyptic number.

43109346823 is a deficient number, since it is larger than the sum of its proper divisors (1).

43109346823 is an equidigital number, since it uses as much as digits as its factorization.

43109346823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 43109346823 in words is "forty-three billion, one hundred nine million, three hundred forty-six thousand, eight hundred twenty-three".