320320202130 has 64 divisors (see below), whose sum is σ = 891325797120. Its totient is φ = 81704861568.

The previous prime is 320320202123. The next prime is 320320202131. The reversal of 320320202130 is 31202023023.

It is a happy number.

320320202130 is a `hidden beast` number, since 320 + 320 + 2 + 0 + 21 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (320320202131) 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, 25784467 + ... + 25796886.

It is an arithmetic number, because the mean of its divisors is an integer number (13926965580).

Almost surely, 2^320320202130 is an apocalyptic number.

320320202130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320320202130 is an abundant number, since it is smaller than the sum of its proper divisors (571005594990).

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

320320202130 is a wasteful number, since it uses less digits than its factorization.

320320202130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51581392 (or 51581386 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 320320202130 its reverse (31202023023), we get a palindrome (351522225153).

The spelling of 320320202130 in words is "three hundred twenty billion, three hundred twenty million, two hundred two thousand, one hundred thirty".