421111320000 has 1120 divisors, whose sum is σ = 1679672332800. Its totient is φ = 91047936000.

The previous prime is 421111319983. The next prime is 421111320031. The reversal of 421111320000 is 23111124.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1437239854 + ... + 1437240146.

It is an arithmetic number, because the mean of its divisors is an integer number (1499707440).

Almost surely, 2^421111320000 is an apocalyptic number.

421111320000 is a gapful number since it is divisible by the number (40) 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 421111320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839836166400).

421111320000 is an abundant number, since it is smaller than the sum of its proper divisors (1258561012800).

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

421111320000 is a wasteful number, since it uses less digits than its factorization.

421111320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 421111320000 its reverse (23111124), we get a palindrome (421134431124).

The spelling of 421111320000 in words is "four hundred twenty-one billion, one hundred eleven million, three hundred twenty thousand".