12421390743000 has 320 divisors, whose sum is σ = 43496943066720. Its totient is φ = 3306475296000.

The previous prime is 12421390742983. The next prime is 12421390743049. The reversal of 12421390743000 is 34709312421.

It is a happy number.

12421390743000 is a `hidden beast` number, since 1 + 2 + 4 + 213 + 9 + 0 + 7 + 430 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 45466810 + ... + 45739190.

Almost surely, 2^{12421390743000} is an apocalyptic number.

12421390743000 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 12421390743000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21748471533360).

12421390743000 is an abundant number, since it is smaller than the sum of its proper divisors (31075552323720).

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

12421390743000 is a wasteful number, since it uses less digits than its factorization.

12421390743000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272977 (or 272954 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 12421390743000 in words is "twelve trillion, four hundred twenty-one billion, three hundred ninety million, seven hundred forty-three thousand".