20103103543 has 8 divisors (see below), whose sum is σ = 20850624000. Its totient is φ = 19359203808.

The previous prime is 20103103519. The next prime is 20103103547. The reversal of 20103103543 is 34530130102.

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

It is not a de Polignac number, because 20103103543 - 2¹⁷ = 20102972471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103103547) 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 7 ways as a sum of consecutive naturals, for example, 893868 + ... + 916081.

It is an arithmetic number, because the mean of its divisors is an integer number (2606328000).

Almost surely, 2^20103103543 is an apocalyptic number.

20103103543 is a deficient number, since it is larger than the sum of its proper divisors (747520457).

20103103543 is a wasteful number, since it uses less digits than its factorization.

20103103543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810361.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 20103103543 its reverse (34530130102), we get a palindrome (54633233645).

The spelling of 20103103543 in words is "twenty billion, one hundred three million, one hundred three thousand, five hundred forty-three".