20434344003 has 12 divisors (see below), whose sum is σ = 29956816968. Its totient is φ = 13419568800.

The previous prime is 20434343983. The next prime is 20434344017. The reversal of 20434344003 is 30044343402.

It is not a de Polignac number, because 20434344003 - 2¹⁰ = 20434342979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20434344703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16943298 + ... + 16944503.

It is an arithmetic number, because the mean of its divisors is an integer number (2496401414).

Almost surely, 2^20434344003 is an apocalyptic number.

20434344003 is a deficient number, since it is larger than the sum of its proper divisors (9522472965).

20434344003 is a wasteful number, since it uses less digits than its factorization.

20434344003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33887874 (or 33887871 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 20434344003 its reverse (30044343402), we get a palindrome (50478687405).

The spelling of 20434344003 in words is "twenty billion, four hundred thirty-four million, three hundred forty-four thousand, three".