404312113121 has 16 divisors (see below), whose sum is σ = 482180448000. Its totient is φ = 331472357568.

The previous prime is 404312113103. The next prime is 404312113147. The reversal of 404312113121 is 121311213404.

It is a cyclic number.

It is not a de Polignac number, because 404312113121 - 2⁶ = 404312113057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404312113021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7021355 + ... + 7078703.

It is an arithmetic number, because the mean of its divisors is an integer number (30136278000).

Almost surely, 2^404312113121 is an apocalyptic number.

It is an amenable number.

404312113121 is a deficient number, since it is larger than the sum of its proper divisors (77868334879).

404312113121 is a wasteful number, since it uses less digits than its factorization.

404312113121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101168.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 404312113121 its reverse (121311213404), we get a palindrome (525623326525).

The spelling of 404312113121 in words is "four hundred four billion, three hundred twelve million, one hundred thirteen thousand, one hundred twenty-one".