320421113430 has 64 divisors (see below), whose sum is σ = 888269027328. Its totient is φ = 73108559360.

The previous prime is 320421113429. The next prime is 320421113431. The reversal of 320421113430 is 34311124023.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (320421113429) and next prime (320421113431).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320421113430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320421113431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28552422 + ... + 28563641.

It is an arithmetic number, because the mean of its divisors is an integer number (13879203552).

Almost surely, 2^320421113430 is an apocalyptic number.

320421113430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320421113430 is an abundant number, since it is smaller than the sum of its proper divisors (567847913898).

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

320421113430 is a wasteful number, since it uses less digits than its factorization.

320421113430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57116101.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 320421113430 its reverse (34311124023), we get a palindrome (354732237453).

The spelling of 320421113430 in words is "three hundred twenty billion, four hundred twenty-one million, one hundred thirteen thousand, four hundred thirty".