20144442112 has 36 divisors (see below), whose sum is σ = 40337203536. Its totient is φ = 10040407040.

The previous prime is 20144442079. The next prime is 20144442121. The reversal of 20144442112 is 21124444102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42964 + ... + 205267.

It is an arithmetic number, because the mean of its divisors is an integer number (1120477876).

Almost surely, 2^20144442112 is an apocalyptic number.

It is an amenable number.

20144442112 is an abundant number, since it is smaller than the sum of its proper divisors (20192761424).

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

20144442112 is an equidigital number, since it uses as much as digits as its factorization.

20144442112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248564 (or 248550 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 20144442112 its reverse (21124444102), we get a palindrome (41268886214).

The spelling of 20144442112 in words is "twenty billion, one hundred forty-four million, four hundred forty-two thousand, one hundred twelve".