20131030244 has 24 divisors (see below), whose sum is σ = 38129918400. Its totient is φ = 9244550304.

The previous prime is 20131030243. The next prime is 20131030247. The reversal of 20131030244 is 44203013102.

It is not an unprimeable number, because it can be changed into a prime (20131030243) 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 7 ways as a sum of consecutive naturals, for example, 962354 + ... + 983049.

It is an arithmetic number, because the mean of its divisors is an integer number (1588746600).

Almost surely, 2^20131030244 is an apocalyptic number.

It is an amenable number.

20131030244 is a deficient number, since it is larger than the sum of its proper divisors (17998888156).

20131030244 is a wasteful number, since it uses less digits than its factorization.

20131030244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945619 (or 1945617 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20131030244 its reverse (44203013102), we get a palindrome (64334043346).

The spelling of 20131030244 in words is "twenty billion, one hundred thirty-one million, thirty thousand, two hundred forty-four".