20201020512 has 48 divisors (see below), whose sum is σ = 53035057152. Its totient is φ = 6732736640.

The previous prime is 20201020429. The next prime is 20201020577. The reversal of 20201020512 is 21502010202.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 20201020491 and 20201020500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208113 + ... + 1224719.

It is an arithmetic number, because the mean of its divisors is an integer number (1104897024).

Almost surely, 2^20201020512 is an apocalyptic number.

It is an amenable number.

20201020512 is an abundant number, since it is smaller than the sum of its proper divisors (32834036640).

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

20201020512 is a wasteful number, since it uses less digits than its factorization.

20201020512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29291 (or 29283 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 20201020512 its reverse (21502010202), we get a palindrome (41703030714).

The spelling of 20201020512 in words is "twenty billion, two hundred one million, twenty thousand, five hundred twelve".