20201230144 has 56 divisors (see below), whose sum is σ = 40526053568. Its totient is φ = 9990190080.

The previous prime is 20201230139. The next prime is 20201230151. The reversal of 20201230144 is 44103210202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7717924 + ... + 7720540.

It is an arithmetic number, because the mean of its divisors is an integer number (723679528).

Almost surely, 2^20201230144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201230144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20263026784).

20201230144 is an abundant number, since it is smaller than the sum of its proper divisors (20324823424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201230144 is a wasteful number, since it uses less digits than its factorization.

20201230144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903 (or 3893 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20201230144 its reverse (44103210202), we get a palindrome (64304440346).

The spelling of 20201230144 in words is "twenty billion, two hundred one million, two hundred thirty thousand, one hundred forty-four".