20403041003 has 4 divisors (see below), whose sum is σ = 21061203648. Its totient is φ = 19744878360.

The previous prime is 20403040967. The next prime is 20403041023. The reversal of 20403041003 is 30014030402.

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

It is not a de Polignac number, because 20403041003 - 2⁸ = 20403040747 is a prime.

It is a super-3 number, since 3×20403041003³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20403041023) 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 3 ways as a sum of consecutive naturals, for example, 329081276 + ... + 329081337.

It is an arithmetic number, because the mean of its divisors is an integer number (5265300912).

Almost surely, 2^20403041003 is an apocalyptic number.

20403041003 is a deficient number, since it is larger than the sum of its proper divisors (658162645).

20403041003 is an equidigital number, since it uses as much as digits as its factorization.

20403041003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658162644.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20403041003 its reverse (30014030402), we get a palindrome (50417071405).

The spelling of 20403041003 in words is "twenty billion, four hundred three million, forty-one thousand, three".