2143431003 has 8 divisors (see below), whose sum is σ = 3266180608. Its totient is φ = 1224817704.

The previous prime is 2143430981. The next prime is 2143431029. The reversal of 2143431003 is 3001343412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2143431003 - 2¹² = 2143426907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 102068143 = 2143431003 / (2 + 1 + 4 + 3 + 4 + 3 + 1 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143431083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51034051 + ... + 51034092.

It is an arithmetic number, because the mean of its divisors is an integer number (408272576).

Almost surely, 2^2143431003 is an apocalyptic number.

2143431003 is a deficient number, since it is larger than the sum of its proper divisors (1122749605).

2143431003 is a wasteful number, since it uses less digits than its factorization.

2143431003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102068153.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2143431003 is about 46297.2029716699. The cubic root of 2143431003 is about 1289.3470651613.

Adding to 2143431003 its reverse (3001343412), we get a palindrome (5144774415).

The spelling of 2143431003 in words is "two billion, one hundred forty-three million, four hundred thirty-one thousand, three".