2002043253 has 16 divisors (see below), whose sum is σ = 3108295296. Its totient is φ = 1122438720.

The previous prime is 2002043231. The next prime is 2002043273. The reversal of 2002043253 is 3523402002.

It is not a de Polignac number, because 2002043253 - 2⁶ = 2002043189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002043273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898278 + ... + 900503.

It is an arithmetic number, because the mean of its divisors is an integer number (194268456).

Almost surely, 2^2002043253 is an apocalyptic number.

It is an amenable number.

2002043253 is a deficient number, since it is larger than the sum of its proper divisors (1106252043).

2002043253 is a wasteful number, since it uses less digits than its factorization.

2002043253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798844.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 2002043253 is about 44744.1979814143. The cubic root of 2002043253 is about 1260.3499601102.

Adding to 2002043253 its reverse (3523402002), we get a palindrome (5525445255).

The spelling of 2002043253 in words is "two billion, two million, forty-three thousand, two hundred fifty-three".