320030322012 has 18 divisors (see below), whose sum is σ = 808965536288. Its totient is φ = 106676773992.

The previous prime is 320030321987. The next prime is 320030322013. The reversal of 320030322012 is 210223030023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320030322013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4444865548 + ... + 4444865619.

Almost surely, 2^320030322012 is an apocalyptic number.

It is an amenable number.

320030322012 is an abundant number, since it is smaller than the sum of its proper divisors (488935214276).

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

320030322012 is a wasteful number, since it uses less digits than its factorization.

320030322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8889731177 (or 8889731172 counting only the distinct ones).

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

Adding to 320030322012 its reverse (210223030023), we get a palindrome (530253352035).

The spelling of 320030322012 in words is "three hundred twenty billion, thirty million, three hundred twenty-two thousand, twelve".