20201113144 has 8 divisors (see below), whose sum is σ = 37877087160. Its totient is φ = 10100556568.

The previous prime is 20201113133. The next prime is 20201113151. The reversal of 20201113144 is 44131110202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262569564 + ... + 1262569579.

It is an arithmetic number, because the mean of its divisors is an integer number (4734635895).

Almost surely, 2^20201113144 is an apocalyptic number.

It is an amenable number.

20201113144 is a deficient number, since it is larger than the sum of its proper divisors (17675974016).

20201113144 is a wasteful number, since it uses less digits than its factorization.

20201113144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525139149 (or 2525139145 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20201113144 its reverse (44131110202), we get a palindrome (64332223346).

The spelling of 20201113144 in words is "twenty billion, two hundred one million, one hundred thirteen thousand, one hundred forty-four".