20315230344 has 24 divisors (see below), whose sum is σ = 55020415710. Its totient is φ = 6771743424.

The previous prime is 20315230339. The next prime is 20315230357. The reversal of 20315230344 is 44303251302.

20315230344 is a `hidden beast` number, since 2 + 0 + 315 + 2 + 3 + 0 + 344 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19052280900 + 1262949444 = 138030^2 + 35538^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141077917 + ... + 141078060.

Almost surely, 2^20315230344 is an apocalyptic number.

20315230344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20315230344 is an abundant number, since it is smaller than the sum of its proper divisors (34705185366).

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

20315230344 is a wasteful number, since it uses less digits than its factorization.

20315230344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282155989 (or 282155982 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 20315230344 its reverse (44303251302), we get a palindrome (64618481646).

The spelling of 20315230344 in words is "twenty billion, three hundred fifteen million, two hundred thirty thousand, three hundred forty-four".