2020013321 has 4 divisors (see below), whose sum is σ = 2138837652. Its totient is φ = 1901188992.

The previous prime is 2020013311. The next prime is 2020013363. The reversal of 2020013321 is 1233100202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1004890000 + 1015123321 = 31700^2 + 31861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020013321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020013296 and 2020013305.

It is not an unprimeable number, because it can be changed into a prime (2020013311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59412140 + ... + 59412173.

It is an arithmetic number, because the mean of its divisors is an integer number (534709413).

Almost surely, 2^2020013321 is an apocalyptic number.

It is an amenable number.

2020013321 is a deficient number, since it is larger than the sum of its proper divisors (118824331).

2020013321 is a wasteful number, since it uses less digits than its factorization.

2020013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118824330.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2020013321 is about 44944.5583024241. The cubic root of 2020013321 is about 1264.1096435977.

Adding to 2020013321 its reverse (1233100202), we get a palindrome (3253113523).

The spelling of 2020013321 in words is "two billion, twenty million, thirteen thousand, three hundred twenty-one".