320402321130 has 64 divisors (see below), whose sum is σ = 775253606400. Its totient is φ = 84743150400.

The previous prime is 320402321111. The next prime is 320402321131. The reversal of 320402321130 is 31123204023.

It is a junction number, because it is equal to n+sod(n) for n = 320402321097 and 320402321106.

It is not an unprimeable number, because it can be changed into a prime (320402321131) by changing a digit.

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, 4295655 + ... + 4369605.

It is an arithmetic number, because the mean of its divisors is an integer number (12113337600).

Almost surely, 2^320402321130 is an apocalyptic number.

320402321130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320402321130 is an abundant number, since it is smaller than the sum of its proper divisors (454851285270).

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

320402321130 is a wasteful number, since it uses less digits than its factorization.

320402321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75139.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 320402321130 its reverse (31123204023), we get a palindrome (351525525153).

The spelling of 320402321130 in words is "three hundred twenty billion, four hundred two million, three hundred twenty-one thousand, one hundred thirty".