20312330113 has 4 divisors (see below), whose sum is σ = 20336541120. Its totient is φ = 20288119108.

The previous prime is 20312330111. The next prime is 20312330117. The reversal of 20312330113 is 31103321302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20312330113 - 2¹ = 20312330111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312330111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12104245 + ... + 12105922.

It is an arithmetic number, because the mean of its divisors is an integer number (5084135280).

Almost surely, 2^20312330113 is an apocalyptic number.

It is an amenable number.

20312330113 is a deficient number, since it is larger than the sum of its proper divisors (24211007).

20312330113 is an equidigital number, since it uses as much as digits as its factorization.

20312330113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24211006.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20312330113 its reverse (31103321302), we get a palindrome (51415651415).

The spelling of 20312330113 in words is "twenty billion, three hundred twelve million, three hundred thirty thousand, one hundred thirteen".