20300331431 has 32 divisors (see below), whose sum is σ = 22655655936. Its totient is φ = 18103680000.

The previous prime is 20300331421. The next prime is 20300331439. The reversal of 20300331431 is 13413300302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20300331431 is a prime.

It is a super-2 number, since 2×20300331431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300331439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5648171 + ... + 5651763.

It is an arithmetic number, because the mean of its divisors is an integer number (707989248).

Almost surely, 2^20300331431 is an apocalyptic number.

20300331431 is a deficient number, since it is larger than the sum of its proper divisors (2355324505).

20300331431 is a wasteful number, since it uses less digits than its factorization.

20300331431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20300331431 its reverse (13413300302), we get a palindrome (33713631733).

The spelling of 20300331431 in words is "twenty billion, three hundred million, three hundred thirty-one thousand, four hundred thirty-one".