14121134131420 has 72 divisors (see below), whose sum is σ = 31058381666592. Its totient is φ = 5382919048320.

The previous prime is 14121134131417. The next prime is 14121134131421. The reversal of 14121134131420 is 2413143112141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14121134131421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33573862 + ... + 33991858.

It is an arithmetic number, because the mean of its divisors is an integer number (431366412036).

Almost surely, 2^{14121134131420} is an apocalyptic number.

14121134131420 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 14121134131420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15529190833296).

14121134131420 is an abundant number, since it is smaller than the sum of its proper divisors (16937247535172).

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

14121134131420 is a wasteful number, since it uses less digits than its factorization.

14121134131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418571 (or 418298 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 14121134131420 its reverse (2413143112141), we get a palindrome (16534277243561).

The spelling of 14121134131420 in words is "fourteen trillion, one hundred twenty-one billion, one hundred thirty-four million, one hundred thirty-one thousand, four hundred twenty".