20300331013 has 4 divisors (see below), whose sum is σ = 20644404480. Its totient is φ = 19956257548.

The previous prime is 20300330969. The next prime is 20300331043. The reversal of 20300331013 is 31013300302.

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 a de Polignac number, because none of the positive numbers 2^k-20300331013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300331043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172036645 + ... + 172036762.

It is an arithmetic number, because the mean of its divisors is an integer number (5161101120).

Almost surely, 2^20300331013 is an apocalyptic number.

It is an amenable number.

20300331013 is a deficient number, since it is larger than the sum of its proper divisors (344073467).

20300331013 is an equidigital number, since it uses as much as digits as its factorization.

20300331013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344073466.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20300331013 its reverse (31013300302), we get a palindrome (51313631315).

The spelling of 20300331013 in words is "twenty billion, three hundred million, three hundred thirty-one thousand, thirteen".