20304431334315 has 32 divisors (see below), whose sum is σ = 36635524546560. Its totient is φ = 10667402726112.

The previous prime is 20304431334283. The next prime is 20304431334361. The reversal of 20304431334315 is 51343313440302.

20304431334315 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 4 + 4 + 3 + 1 + 334 + 315 = 666.

It is not a de Polignac number, because 20304431334315 - 2⁵ = 20304431334283 is a prime.

It is a super-2 number, since 2×20304431334315² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20304431334315.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1122402859 + ... + 1122420948.

It is an arithmetic number, because the mean of its divisors is an integer number (1144860142080).

Almost surely, 2^{20304431334315} is an apocalyptic number.

20304431334315 is a deficient number, since it is larger than the sum of its proper divisors (16331093212245).

20304431334315 is a wasteful number, since it uses less digits than its factorization.

20304431334315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244823888 (or 2244823882 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 20304431334315 its reverse (51343313440302), we get a palindrome (71647744774617).

The spelling of 20304431334315 in words is "twenty trillion, three hundred four billion, four hundred thirty-one million, three hundred thirty-four thousand, three hundred fifteen".