320211033012 has 72 divisors (see below), whose sum is σ = 888132556584. Its totient is φ = 96667474176.

The previous prime is 320211033001. The next prime is 320211033013. The reversal of 320211033012 is 210330112023.

320211033012 is a `hidden beast` number, since 320 + 2 + 1 + 1 + 0 + 330 + 12 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 134136132516 + 186074900496 = 366246^2 + 431364^2 .

It is a super-2 number, since 2×320211033012² (a number of 24 digits) contains 22 as substring.

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 (320211033013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6430023 + ... + 6479630.

It is an arithmetic number, because the mean of its divisors is an integer number (12335174397).

Almost surely, 2^320211033012 is an apocalyptic number.

It is an amenable number.

320211033012 is an abundant number, since it is smaller than the sum of its proper divisors (567921523572).

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

320211033012 is a wasteful number, since it uses less digits than its factorization.

320211033012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12909729 (or 12909724 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 320211033012 its reverse (210330112023), we get a palindrome (530541145035).

The spelling of 320211033012 in words is "three hundred twenty billion, two hundred eleven million, thirty-three thousand, twelve".