2020003121 has 16 divisors (see below), whose sum is σ = 2234469888. Its totient is φ = 1817644800.

The previous prime is 2020003103. The next prime is 2020003163. The reversal of 2020003121 is 1213000202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2020003121 - 2⁶ = 2020003057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020003021) 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, 20651 + ... + 66831.

It is an arithmetic number, because the mean of its divisors is an integer number (139654368).

Almost surely, 2^2020003121 is an apocalyptic number.

It is an amenable number.

2020003121 is a deficient number, since it is larger than the sum of its proper divisors (214466767).

2020003121 is a wasteful number, since it uses less digits than its factorization.

2020003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46312.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2020003121 is about 44944.4448291443. Note that the first 3 decimals coincide. The cubic root of 2020003121 is about 1264.1075158988.

Adding to 2020003121 its reverse (1213000202), we get a palindrome (3233003323).

The spelling of 2020003121 in words is "two billion, twenty million, three thousand, one hundred twenty-one".