43195054723 has 2 divisors, whose sum is σ = 43195054724. Its totient is φ = 43195054722.

The previous prime is 43195054649. The next prime is 43195054739. The reversal of 43195054723 is 32745059134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43195054723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43195054723.

It is not a weakly prime, because it can be changed into another prime (43195054523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21597527361 + 21597527362.

It is an arithmetic number, because the mean of its divisors is an integer number (21597527362).

Almost surely, 2^43195054723 is an apocalyptic number.

43195054723 is a deficient number, since it is larger than the sum of its proper divisors (1).

43195054723 is an equidigital number, since it uses as much as digits as its factorization.

43195054723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 43195054723 in words is "forty-three billion, one hundred ninety-five million, fifty-four thousand, seven hundred twenty-three".