2002143131 has 4 divisors (see below), whose sum is σ = 2003949600. Its totient is φ = 2000336664.

The previous prime is 2002143113. The next prime is 2002143203. The reversal of 2002143131 is 1313412002.

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 2002143131 - 2¹⁸ = 2001880987 is a prime.

It is a super-2 number, since 2×2002143131² = 8017154234020966322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002143631) 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, 901571 + ... + 903788.

It is an arithmetic number, because the mean of its divisors is an integer number (500987400).

Almost surely, 2^2002143131 is an apocalyptic number.

2002143131 is a deficient number, since it is larger than the sum of its proper divisors (1806469).

2002143131 is a wasteful number, since it uses less digits than its factorization.

2002143131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806468.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2002143131 is about 44745.3140675088. The cubic root of 2002143131 is about 1260.3709185551.

Adding to 2002143131 its reverse (1313412002), we get a palindrome (3315555133).

The spelling of 2002143131 in words is "two billion, two million, one hundred forty-three thousand, one hundred thirty-one".