404330400511123 has 4 divisors (see below), whose sum is σ = 406667570456448. Its totient is φ = 401993230565800.

The previous prime is 404330400511039. The next prime is 404330400511139. The reversal of 404330400511123 is 321115004033404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404330400511123 - 2⁹ = 404330400510611 is a prime.

It is a super-2 number, since 2×404330400511123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404330400512123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1168584972403 + ... + 1168584972748.

It is an arithmetic number, because the mean of its divisors is an integer number (101666892614112).

Almost surely, 2^{404330400511123} is an apocalyptic number.

404330400511123 is a deficient number, since it is larger than the sum of its proper divisors (2337169945325).

404330400511123 is a wasteful number, since it uses less digits than its factorization.

404330400511123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337169945324.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 404330400511123 its reverse (321115004033404), we get a palindrome (725445404544527).

The spelling of 404330400511123 in words is "four hundred four trillion, three hundred thirty billion, four hundred million, five hundred eleven thousand, one hundred twenty-three".