2002042431 has 12 divisors (see below), whose sum is σ = 2897375208. Its totient is φ = 1332139824.

The previous prime is 2002042397. The next prime is 2002042433. The reversal of 2002042431 is 1342402002.

It is not a de Polignac number, because 2002042431 - 2⁹ = 2002041919 is a prime.

It is a super-2 number, since 2×2002042431² = 8016347791048779522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002042433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207960 + ... + 217373.

It is an arithmetic number, because the mean of its divisors is an integer number (241447934).

Almost surely, 2^2002042431 is an apocalyptic number.

2002042431 is a deficient number, since it is larger than the sum of its proper divisors (895332777).

2002042431 is a wasteful number, since it uses less digits than its factorization.

2002042431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425862 (or 425859 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2002042431 is about 44744.1887958649. The cubic root of 2002042431 is about 1260.3497876184.

Adding to 2002042431 its reverse (1342402002), we get a palindrome (3344444433).

The spelling of 2002042431 in words is "two billion, two million, forty-two thousand, four hundred thirty-one".