1421234231424 has 128 divisors (see below), whose sum is σ = 4315698401280. Its totient is φ = 405950469120.

The previous prime is 1421234231423. The next prime is 1421234231437. The reversal of 1421234231424 is 4241324321241.

It is a tau number, because it is divible by the number of its divisors (128).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1421234231423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9524817 + ... + 9672879.

It is an arithmetic number, because the mean of its divisors is an integer number (33716393760).

Almost surely, 2^{1421234231424} is an apocalyptic number.

1421234231424 is a gapful number since it is divisible by the number (14) 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 1421234231424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2157849200640).

1421234231424 is an abundant number, since it is smaller than the sum of its proper divisors (2894464169856).

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

1421234231424 is a wasteful number, since it uses less digits than its factorization.

1421234231424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151658 (or 151646 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

Adding to 1421234231424 its reverse (4241324321241), we get a palindrome (5662558552665).

The spelling of 1421234231424 in words is "one trillion, four hundred twenty-one billion, two hundred thirty-four million, two hundred thirty-one thousand, four hundred twenty-four".