404331405312123 has 24 divisors (see below), whose sum is σ = 586672018604672. Its totient is φ = 268336916909568.

The previous prime is 404331405312059. The next prime is 404331405312173. The reversal of 404331405312123 is 321213504133404.

404331405312123 is a `hidden beast` number, since 4 + 0 + 4 + 3 + 3 + 1 + 405 + 31 + 212 + 3 = 666.

It is not a de Polignac number, because 404331405312123 - 2⁶ = 404331405312059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404331405312173) 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, 59797065 + ... + 66214437.

Almost surely, 2^{404331405312123} is an apocalyptic number.

404331405312123 is a deficient number, since it is larger than the sum of its proper divisors (182340613292549).

404331405312123 is a wasteful number, since it uses less digits than its factorization.

404331405312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448995 (or 6448992 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 404331405312123 its reverse (321213504133404), we get a palindrome (725544909445527).

The spelling of 404331405312123 in words is "four hundred four trillion, three hundred thirty-one billion, four hundred five million, three hundred twelve thousand, one hundred twenty-three".