1020020210144 has 144 divisors (see below), whose sum is σ = 2302932870000. Its totient is φ = 442006388736.

The previous prime is 1020020210117. The next prime is 1020020210159. The reversal of 1020020210144 is 4410120200201.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50363732 + ... + 50383980.

It is an arithmetic number, because the mean of its divisors is an integer number (15992589375).

Almost surely, 2^{1020020210144} 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 1020020210144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151466435000).

1020020210144 is an abundant number, since it is smaller than the sum of its proper divisors (1282912659856).

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

1020020210144 is a wasteful number, since it uses less digits than its factorization.

1020020210144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20725 (or 20700 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1020020210144 its reverse (4410120200201), we get a palindrome (5430140410345).

The spelling of 1020020210144 in words is "one trillion, twenty billion, twenty million, two hundred ten thousand, one hundred forty-four".