2002021323 has 16 divisors (see below), whose sum is σ = 2757897216. Its totient is φ = 1290489120.

The previous prime is 2002021319. The next prime is 2002021327. The reversal of 2002021323 is 3231202002.

It is an interprime number because it is at equal distance from previous prime (2002021319) and next prime (2002021327).

It is not a de Polignac number, because 2002021323 - 2² = 2002021319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002021327) 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 15 ways as a sum of consecutive naturals, for example, 103936 + ... + 121682.

It is an arithmetic number, because the mean of its divisors is an integer number (172368576).

Almost surely, 2^2002021323 is an apocalyptic number.

2002021323 is a deficient number, since it is larger than the sum of its proper divisors (755875893).

2002021323 is a wasteful number, since it uses less digits than its factorization.

2002021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18994.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2002021323 is about 44743.9529210373. The cubic root of 2002021323 is about 1260.3453582157.

Adding to 2002021323 its reverse (3231202002), we get a palindrome (5233223325).

The spelling of 2002021323 in words is "two billion, two million, twenty-one thousand, three hundred twenty-three".