404334112343243 has 2 divisors, whose sum is σ = 404334112343244. Its totient is φ = 404334112343242.

The previous prime is 404334112343173. The next prime is 404334112343339. The reversal of 404334112343243 is 342343211433404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404334112343243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404334112343243.

It is not a weakly prime, because it can be changed into another prime (404334112343543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202167056171621 + 202167056171622.

It is an arithmetic number, because the mean of its divisors is an integer number (202167056171622).

Almost surely, 2^{404334112343243} is an apocalyptic number.

404334112343243 is a deficient number, since it is larger than the sum of its proper divisors (1).

404334112343243 is an equidigital number, since it uses as much as digits as its factorization.

404334112343243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 41.

Adding to 404334112343243 its reverse (342343211433404), we get a palindrome (746677323776647).

The spelling of 404334112343243 in words is "four hundred four trillion, three hundred thirty-four billion, one hundred twelve million, three hundred forty-three thousand, two hundred forty-three".