20320320333212 has 12 divisors (see below), whose sum is σ = 35578349772000. Its totient is φ = 10155077541216.

The previous prime is 20320320333197. The next prime is 20320320333221. The reversal of 20320320333212 is 21233302302302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270647353 + ... + 1270663344.

It is an arithmetic number, because the mean of its divisors is an integer number (2964862481000).

Almost surely, 2^{20320320333212} is an apocalyptic number.

It is an amenable number.

20320320333212 is a deficient number, since it is larger than the sum of its proper divisors (15258029438788).

20320320333212 is a wasteful number, since it uses less digits than its factorization.

20320320333212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541312700 (or 2541312698 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20320320333212 its reverse (21233302302302), we get a palindrome (41553622635514).

The spelling of 20320320333212 in words is "twenty trillion, three hundred twenty billion, three hundred twenty million, three hundred thirty-three thousand, two hundred twelve".