144003203220 has 144 divisors (see below), whose sum is σ = 442140830208. Its totient is φ = 34975979520.

The previous prime is 144003203207. The next prime is 144003203231. The reversal of 144003203220 is 22302300441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403594 + ... + 671486.

It is an arithmetic number, because the mean of its divisors is an integer number (3070422432).

Almost surely, 2^144003203220 is an apocalyptic number.

144003203220 is a gapful number since it is divisible by the number (10) 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 144003203220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221070415104).

144003203220 is an abundant number, since it is smaller than the sum of its proper divisors (298137626988).

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

144003203220 is a wasteful number, since it uses less digits than its factorization.

144003203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267970 (or 267951 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 144003203220 its reverse (22302300441), we get a palindrome (166305503661).

The spelling of 144003203220 in words is "one hundred forty-four billion, three million, two hundred three thousand, two hundred twenty".