20120652328721 has 12 divisors (see below), whose sum is σ = 23406731539632. Its totient is φ = 17245481504328.

The previous prime is 20120652328669. The next prime is 20120652328753. The reversal of 20120652328721 is 12782325602102.

It is not a de Polignac number, because 20120652328721 - 2²⁶ = 20120585219857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120657328721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8348375 + ... + 10485068.

It is an arithmetic number, because the mean of its divisors is an integer number (1950560961636).

Almost surely, 2^{20120652328721} is an apocalyptic number.

It is an amenable number.

20120652328721 is a deficient number, since it is larger than the sum of its proper divisors (3286079210911).

20120652328721 is a wasteful number, since it uses less digits than its factorization.

20120652328721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18855260 (or 18855253 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 20120652328721 in words is "twenty trillion, one hundred twenty billion, six hundred fifty-two million, three hundred twenty-eight thousand, seven hundred twenty-one".