2020012020321 has 16 divisors (see below), whose sum is σ = 2699585648064. Its totient is φ = 1343556890624.

The previous prime is 2020012020269. The next prime is 2020012020331. The reversal of 2020012020321 is 1230202100202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2020012020321 - 2⁷ = 2020012020193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020012020321.

It is not an unprimeable number, because it can be changed into a prime (2020012020331) 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, 31248385 + ... + 31312961.

It is an arithmetic number, because the mean of its divisors is an integer number (168724103004).

Almost surely, 2^{2020012020321} is an apocalyptic number.

It is an amenable number.

2020012020321 is a deficient number, since it is larger than the sum of its proper divisors (679573627743).

2020012020321 is a wasteful number, since it uses less digits than its factorization.

2020012020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88560.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 2020012020321 its reverse (1230202100202), we get a palindrome (3250214120523).

The spelling of 2020012020321 in words is "two trillion, twenty billion, twelve million, twenty thousand, three hundred twenty-one".