20441403112 has 48 divisors (see below), whose sum is σ = 41526535680. Its totient is φ = 9429076800.

The previous prime is 20441403107. The next prime is 20441403173. The reversal of 20441403112 is 21130414402.

It is a happy number.

It is a super-2 number, since 2×20441403112² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3256537 + ... + 3262807.

It is an arithmetic number, because the mean of its divisors is an integer number (865136160).

Almost surely, 2^20441403112 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 20441403112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20763267840).

20441403112 is an abundant number, since it is smaller than the sum of its proper divisors (21085132568).

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

20441403112 is a wasteful number, since it uses less digits than its factorization.

20441403112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8714 (or 8697 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20441403112 its reverse (21130414402), we get a palindrome (41571817514).

The spelling of 20441403112 in words is "twenty billion, four hundred forty-one million, four hundred three thousand, one hundred twelve".