12230311421040 has 160 divisors (see below), whose sum is σ = 39577137615360. Its totient is φ = 3118453459968.

The previous prime is 12230311421011. The next prime is 12230311421057. The reversal of 12230311421040 is 4012411303221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12230311421040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14453991 + ... + 15276729.

It is an arithmetic number, because the mean of its divisors is an integer number (247357110096).

Almost surely, 2^{12230311421040} is an apocalyptic number.

12230311421040 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 12230311421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19788568807680).

12230311421040 is an abundant number, since it is smaller than the sum of its proper divisors (27346826194320).

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

12230311421040 is a wasteful number, since it uses less digits than its factorization.

12230311421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825471 (or 825465 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12230311421040 its reverse (4012411303221), we get a palindrome (16242722724261).

The spelling of 12230311421040 in words is "twelve trillion, two hundred thirty billion, three hundred eleven million, four hundred twenty-one thousand, forty".