20030431003 has 4 divisors (see below), whose sum is σ = 21851379288. Its totient is φ = 18209482720.

The previous prime is 20030430989. The next prime is 20030431013. The reversal of 20030431003 is 30013403002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20030431003 - 2²⁹ = 19493560091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20030431013) 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, 910474126 + ... + 910474147.

It is an arithmetic number, because the mean of its divisors is an integer number (5462844822).

Almost surely, 2^20030431003 is an apocalyptic number.

20030431003 is a deficient number, since it is larger than the sum of its proper divisors (1820948285).

20030431003 is a wasteful number, since it uses less digits than its factorization.

20030431003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820948284.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20030431003 its reverse (30013403002), we get a palindrome (50043834005).

The spelling of 20030431003 in words is "twenty billion, thirty million, four hundred thirty-one thousand, three".