421433344213320 has 128 divisors (see below), whose sum is σ = 1319280028819200. Its totient is φ = 107495191609344.

The previous prime is 421433344213319. The next prime is 421433344213333. The reversal of 421433344213320 is 23312443334124.

It is a super-2 number, since 2×421433344213320² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395718664 + ... + 396782216.

It is an arithmetic number, because the mean of its divisors is an integer number (10306875225150).

Almost surely, 2^{421433344213320} is an apocalyptic number.

421433344213320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421433344213320 is an abundant number, since it is smaller than the sum of its proper divisors (897846684605880).

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

421433344213320 is a wasteful number, since it uses less digits than its factorization.

421433344213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207159 (or 1207155 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 39.

Adding to 421433344213320 its reverse (23312443334124), we get a palindrome (444745787547444).

The spelling of 421433344213320 in words is "four hundred twenty-one trillion, four hundred thirty-three billion, three hundred forty-four million, two hundred thirteen thousand, three hundred twenty".