20013202021028 has 48 divisors (see below), whose sum is σ = 35501641943040. Its totient is φ = 9870269709600.

The previous prime is 20013202021027. The next prime is 20013202021063. The reversal of 20013202021028 is 82012020231002.

It is a junction number, because it is equal to n+sod(n) for n = 20013202020994 and 20013202021012.

It is not an unprimeable number, because it can be changed into a prime (20013202021027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 839785073 + ... + 839808903.

It is an arithmetic number, because the mean of its divisors is an integer number (739617540480).

Almost surely, 2^{20013202021028} is an apocalyptic number.

It is an amenable number.

20013202021028 is a deficient number, since it is larger than the sum of its proper divisors (15488439922012).

20013202021028 is a wasteful number, since it uses less digits than its factorization.

20013202021028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27848 (or 27846 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The spelling of 20013202021028 in words is "twenty trillion, thirteen billion, two hundred two million, twenty-one thousand, twenty-eight".