421001420340000 has 240 divisors, whose sum is σ = 1441010988027072. Its totient is φ = 107385869184000.

The previous prime is 421001420339939. The next prime is 421001420340091. The reversal of 421001420340000 is 43024100124.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 151156747 + ... + 153916746.

Almost surely, 2^{421001420340000} is an apocalyptic number.

421001420340000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421001420340000 is an abundant number, since it is smaller than the sum of its proper divisors (1020009567687072).

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

421001420340000 is a wasteful number, since it uses less digits than its factorization.

421001420340000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305073549 (or 305073526 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 421001420340000 its reverse (43024100124), we get a palindrome (421044444440124).

The spelling of 421001420340000 in words is "four hundred twenty-one trillion, one billion, four hundred twenty million, three hundred forty thousand".