320140020012 has 24 divisors (see below), whose sum is σ = 747067339200. Its totient is φ = 106702774416.

The previous prime is 320140019987. The next prime is 320140020019. The reversal of 320140020012 is 210020041023.

It is a junction number, because it is equal to n+sod(n) for n = 320140019973 and 320140020000.

It is not an unprimeable number, because it can be changed into a prime (320140020019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193962 + ... + 1437297.

It is an arithmetic number, because the mean of its divisors is an integer number (31127805800).

Almost surely, 2^320140020012 is an apocalyptic number.

It is an amenable number.

320140020012 is an abundant number, since it is smaller than the sum of its proper divisors (426927319188).

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

320140020012 is a wasteful number, since it uses less digits than its factorization.

320140020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641405 (or 2641403 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 320140020012 its reverse (210020041023), we get a palindrome (530160061035).

The spelling of 320140020012 in words is "three hundred twenty billion, one hundred forty million, twenty thousand, twelve".