404312231020 has 12 divisors (see below), whose sum is σ = 849055685184. Its totient is φ = 161724892400.

The previous prime is 404312230991. The next prime is 404312231027. The reversal of 404312231020 is 20132213404.

It is a junction number, because it is equal to n+sod(n) for n = 404312230982 and 404312231000.

It is not an unprimeable number, because it can be changed into a prime (404312231027) 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, 10107805756 + ... + 10107805795.

It is an arithmetic number, because the mean of its divisors is an integer number (70754640432).

Almost surely, 2^404312231020 is an apocalyptic number.

It is an amenable number.

404312231020 is an abundant number, since it is smaller than the sum of its proper divisors (444743454164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404312231020 is a wasteful number, since it uses less digits than its factorization.

404312231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20215611560 (or 20215611558 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 404312231020 its reverse (20132213404), we get a palindrome (424444444424).

The spelling of 404312231020 in words is "four hundred four billion, three hundred twelve million, two hundred thirty-one thousand, twenty".