2020121013 has 4 divisors (see below), whose sum is σ = 2693494688. Its totient is φ = 1346747340.

The previous prime is 2020120997. The next prime is 2020121017. The reversal of 2020121013 is 3101210202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2020121013 - 2⁴ = 2020120997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020121017) 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, 336686833 + ... + 336686838.

It is an arithmetic number, because the mean of its divisors is an integer number (673373672).

Almost surely, 2^2020121013 is an apocalyptic number.

It is an amenable number.

2020121013 is a deficient number, since it is larger than the sum of its proper divisors (673373675).

2020121013 is an equidigital number, since it uses as much as digits as its factorization.

2020121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673373674.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2020121013 is about 44945.7563402820. The cubic root of 2020121013 is about 1264.1321074886.

Adding to 2020121013 its reverse (3101210202), we get a palindrome (5121331215).

It can be divided in two parts, 20201 and 21013, that added together give a palindrome (41214).

The spelling of 2020121013 in words is "two billion, twenty million, one hundred twenty-one thousand, thirteen".