12404231304420 has 192 divisors, whose sum is σ = 38519788769280. Its totient is φ = 2968350561792.

The previous prime is 12404231304407. The next prime is 12404231304433. The reversal of 12404231304420 is 2440313240421.

It is an interprime number because it is at equal distance from previous prime (12404231304407) and next prime (12404231304433).

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

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, 404142 + ... + 4997178.

It is an arithmetic number, because the mean of its divisors is an integer number (200623899840).

Almost surely, 2^{12404231304420} is an apocalyptic number.

12404231304420 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 12404231304420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19259894384640).

12404231304420 is an abundant number, since it is smaller than the sum of its proper divisors (26115557464860).

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

12404231304420 is a wasteful number, since it uses less digits than its factorization.

12404231304420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593194 (or 4593192 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 12404231304420 its reverse (2440313240421), we get a palindrome (14844544544841).

The spelling of 12404231304420 in words is "twelve trillion, four hundred four billion, two hundred thirty-one million, three hundred four thousand, four hundred twenty".