2001430143 has 24 divisors (see below), whose sum is σ = 2905763328. Its totient is φ = 1327474512.

The previous prime is 2001430139. The next prime is 2001430181. The reversal of 2001430143 is 3410341002.

It is not a de Polignac number, because 2001430143 - 2² = 2001430139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001430103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2419696 + ... + 2420522.

It is an arithmetic number, because the mean of its divisors is an integer number (121073472).

Almost surely, 2^2001430143 is an apocalyptic number.

2001430143 is a deficient number, since it is larger than the sum of its proper divisors (904333185).

2001430143 is a wasteful number, since it uses less digits than its factorization.

2001430143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883 (or 1880 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2001430143 is about 44737.3461774388. The cubic root of 2001430143 is about 1260.2212895536.

Adding to 2001430143 its reverse (3410341002), we get a palindrome (5411771145).

The spelling of 2001430143 in words is "two billion, one million, four hundred thirty thousand, one hundred forty-three".