2143441111020 has 192 divisors, whose sum is σ = 6578353958400. Its totient is φ = 517155840000.

The previous prime is 2143441110983. The next prime is 2143441111037. The reversal of 2143441111020 is 201111443412.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 256603164 + ... + 256611516.

It is an arithmetic number, because the mean of its divisors is an integer number (34262260200).

Almost surely, 2^{2143441111020} is an apocalyptic number.

2143441111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143441111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3289176979200).

2143441111020 is an abundant number, since it is smaller than the sum of its proper divisors (4434912847380).

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

2143441111020 is a wasteful number, since it uses less digits than its factorization.

2143441111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10176 (or 10174 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 2143441111020 its reverse (201111443412), we get a palindrome (2344552554432).

The spelling of 2143441111020 in words is "two trillion, one hundred forty-three billion, four hundred forty-one million, one hundred eleven thousand, twenty".