2002020323 has 4 divisors (see below), whose sum is σ = 2003813760. Its totient is φ = 2000226888.

The previous prime is 2002020311. The next prime is 2002020343. The reversal of 2002020323 is 3230202002.

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

It is a cyclic number.

It is not a de Polignac number, because 2002020323 - 2⁶ = 2002020259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002020298 and 2002020307.

It is not an unprimeable number, because it can be changed into a prime (2002020343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895043 + ... + 897276.

It is an arithmetic number, because the mean of its divisors is an integer number (500953440).

Almost surely, 2^2002020323 is an apocalyptic number.

2002020323 is a deficient number, since it is larger than the sum of its proper divisors (1793437).

2002020323 is a wasteful number, since it uses less digits than its factorization.

2002020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793436.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 2002020323 is about 44743.9417463415. The cubic root of 2002020323 is about 1260.3451483701.

Adding to 2002020323 its reverse (3230202002), we get a palindrome (5232222325).

The spelling of 2002020323 in words is "two billion, two million, twenty thousand, three hundred twenty-three".