2002143331 has 4 divisors (see below), whose sum is σ = 2002634464. Its totient is φ = 2001652200.

The previous prime is 2002143323. The next prime is 2002143361. The reversal of 2002143331 is 1333412002.

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 2002143331 - 2³ = 2002143323 is a prime.

It is a super-2 number, since 2×2002143331² = 8017155835735551122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002143299 and 2002143308.

It is not an unprimeable number, because it can be changed into a prime (2002143361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239400 + ... + 247621.

It is an arithmetic number, because the mean of its divisors is an integer number (500658616).

Almost surely, 2^2002143331 is an apocalyptic number.

2002143331 is a deficient number, since it is larger than the sum of its proper divisors (491133).

2002143331 is an equidigital number, since it uses as much as digits as its factorization.

2002143331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491132.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2002143331 is about 44745.3163023796. The cubic root of 2002143331 is about 1260.3709605225.

Adding to 2002143331 its reverse (1333412002), we get a palindrome (3335555333).

The spelling of 2002143331 in words is "two billion, two million, one hundred forty-three thousand, three hundred thirty-one".