11421043000000 has 196 divisors, whose sum is σ = 28809482015160. Its totient is φ = 4490963200000.

The previous prime is 11421042999953. The next prime is 11421043000039. The reversal of 11421043000000 is 34012411.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 58903212 + ... + 59096788.

Almost surely, 2^{11421043000000} is an apocalyptic number.

11421043000000 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 11421043000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14404741007580).

11421043000000 is an abundant number, since it is smaller than the sum of its proper divisors (17388439015160).

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

11421043000000 is an frugal number, since it uses more digits than its factorization.

11421043000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193678 (or 193643 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11421043000000 its reverse (34012411), we get a palindrome (11421077012411).

The spelling of 11421043000000 in words is "eleven trillion, four hundred twenty-one billion, forty-three million", and thus it is an aban number.