144310221231420 has 192 divisors, whose sum is σ = 418206598225920. Its totient is φ = 37142848512000.

The previous prime is 144310221231377. The next prime is 144310221231479. The reversal of 144310221231420 is 24132122013441.

It is a happy number.

It is a super-2 number, since 2×144310221231420² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent 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, 7487678904 + ... + 7487698176.

It is an arithmetic number, because the mean of its divisors is an integer number (2178159365760).

Almost surely, 2^{144310221231420} is an apocalyptic number.

144310221231420 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 144310221231420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209103299112960).

144310221231420 is an abundant number, since it is smaller than the sum of its proper divisors (273896376994500).

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

144310221231420 is a wasteful number, since it uses less digits than its factorization.

144310221231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29756 (or 29754 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 144310221231420 its reverse (24132122013441), we get a palindrome (168442343244861).

The spelling of 144310221231420 in words is "one hundred forty-four trillion, three hundred ten billion, two hundred twenty-one million, two hundred thirty-one thousand, four hundred twenty".