320320003430 has 64 divisors (see below), whose sum is σ = 676875346560. Its totient is φ = 106836516864.

The previous prime is 320320003361. The next prime is 320320003439. The reversal of 320320003430 is 34300023023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320320003439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26756486 + ... + 26768454.

It is an arithmetic number, because the mean of its divisors is an integer number (10576177290).

Almost surely, 2^320320003430 is an apocalyptic number.

320320003430 is an abundant number, since it is smaller than the sum of its proper divisors (356555343130).

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

320320003430 is a wasteful number, since it uses less digits than its factorization.

320320003430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22353.

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 320320003430 its reverse (34300023023), we get a palindrome (354620026453).

The spelling of 320320003430 in words is "three hundred twenty billion, three hundred twenty million, three thousand, four hundred thirty".