2023003021 has 16 divisors (see below), whose sum is σ = 2200641408. Its totient is φ = 1848600000.

The previous prime is 2023003013. The next prime is 2023003061. The reversal of 2023003021 is 1203003202.

It is a happy number.

It is not a de Polignac number, because 2023003021 - 2³ = 2023003013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2023002992 and 2023003010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023003061) 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, 620646 + ... + 623896.

It is an arithmetic number, because the mean of its divisors is an integer number (137540088).

Almost surely, 2^2023003021 is an apocalyptic number.

It is an amenable number.

2023003021 is a deficient number, since it is larger than the sum of its proper divisors (177638387).

2023003021 is a wasteful number, since it uses less digits than its factorization.

2023003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2023003021 is about 44977.8058713406. The cubic root of 2023003021 is about 1264.7329803491.

Adding to 2023003021 its reverse (1203003202), we get a palindrome (3226006223).

The spelling of 2023003021 in words is "two billion, twenty-three million, three thousand, twenty-one".