20204312452 has 12 divisors (see below), whose sum is σ = 35363453580. Its totient is φ = 10100468576.

The previous prime is 20204312449. The next prime is 20204312477. The reversal of 20204312452 is 25421340202.

It can be written as a sum of positive squares in 2 ways, for example, as 19537330176 + 666982276 = 139776^2 + 25826^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394783 + ... + 443014.

It is an arithmetic number, because the mean of its divisors is an integer number (2946954465).

Almost surely, 2^20204312452 is an apocalyptic number.

It is an amenable number.

20204312452 is a deficient number, since it is larger than the sum of its proper divisors (15159141128).

20204312452 is a wasteful number, since it uses less digits than its factorization.

20204312452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843830 (or 843828 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20204312452 its reverse (25421340202), we get a palindrome (45625652654).

The spelling of 20204312452 in words is "twenty billion, two hundred four million, three hundred twelve thousand, four hundred fifty-two".