1004020332320 has 24 divisors (see below), whose sum is σ = 2371998035484. Its totient is φ = 401608132864.

The previous prime is 1004020332319. The next prime is 1004020332323. The reversal of 1004020332320 is 232330204001.

It can be written as a sum of positive squares in 2 ways, for example, as 914922858256 + 89097474064 = 956516^2 + 298492^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1004020332292 and 1004020332301.

It is not an unprimeable number, because it can be changed into a prime (1004020332323) 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, 3137563379 + ... + 3137563698.

Almost surely, 2^{1004020332320} is an apocalyptic number.

1004020332320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004020332320 is an abundant number, since it is smaller than the sum of its proper divisors (1367977703164).

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

1004020332320 is an equidigital number, since it uses as much as digits as its factorization.

1004020332320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275127092 (or 6275127084 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 1004020332320 its reverse (232330204001), we get a palindrome (1236350536321).

The spelling of 1004020332320 in words is "one trillion, four billion, twenty million, three hundred thirty-two thousand, three hundred twenty".