20315325530 has 32 divisors (see below), whose sum is σ = 36696336768. Its totient is φ = 8097566400.

The previous prime is 20315325523. The next prime is 20315325553. The reversal of 20315325530 is 3552351302.

It is a junction number, because it is equal to n+sod(n) for n = 20315325493 and 20315325502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4590899 + ... + 4595321.

It is an arithmetic number, because the mean of its divisors is an integer number (1146760524).

Almost surely, 2^20315325530 is an apocalyptic number.

20315325530 is a deficient number, since it is larger than the sum of its proper divisors (16381011238).

20315325530 is a wasteful number, since it uses less digits than its factorization.

20315325530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942.

The product of its (nonzero) digits is 13500, while the sum is 29.

Adding to 20315325530 its reverse (3552351302), we get a palindrome (23867676832).

The spelling of 20315325530 in words is "twenty billion, three hundred fifteen million, three hundred twenty-five thousand, five hundred thirty".