20004430311325 has 12 divisors (see below), whose sum is σ = 24851344792468. Its totient is φ = 15973962825600.

The previous prime is 20004430311323. The next prime is 20004430311377. The reversal of 20004430311325 is 52311303440002.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 14964873561 + 19989465437764 = 122331^2 + 4470958^2 .

It is not a de Polignac number, because 20004430311325 - 2¹ = 20004430311323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20004430311293 and 20004430311302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004430311323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 739521792 + ... + 739548841.

Almost surely, 2^{20004430311325} is an apocalyptic number.

20004430311325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20004430311325 is a deficient number, since it is larger than the sum of its proper divisors (4846914481143).

20004430311325 is a wasteful number, since it uses less digits than its factorization.

20004430311325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479071184 (or 1479071179 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 20004430311325 its reverse (52311303440002), we get a palindrome (72315733751327).

The spelling of 20004430311325 in words is "twenty trillion, four billion, four hundred thirty million, three hundred eleven thousand, three hundred twenty-five".