404213123420343 has 24 divisors (see below), whose sum is σ = 583958087294400. Its totient is φ = 269431716016320.

The previous prime is 404213123420269. The next prime is 404213123420377. The reversal of 404213123420343 is 343024321312404.

404213123420343 is a `hidden beast` number, since 4 + 0 + 4 + 213 + 1 + 234 + 203 + 4 + 3 = 666.

It is not a de Polignac number, because 404213123420343 - 2⁸ = 404213123420087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404213123420298 and 404213123420307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404213123424343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4233836098 + ... + 4233931568.

It is an arithmetic number, because the mean of its divisors is an integer number (24331586970600).

Almost surely, 2^{404213123420343} is an apocalyptic number.

404213123420343 is a deficient number, since it is larger than the sum of its proper divisors (179744963874057).

404213123420343 is a wasteful number, since it uses less digits than its factorization.

404213123420343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166839 (or 166836 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 404213123420343 its reverse (343024321312404), we get a palindrome (747237444732747).

The spelling of 404213123420343 in words is "four hundred four trillion, two hundred thirteen billion, one hundred twenty-three million, four hundred twenty thousand, three hundred forty-three".