2103021113503 has 4 divisors (see below), whose sum is σ = 2142700757208. Its totient is φ = 2063341469800.

The previous prime is 2103021113483. The next prime is 2103021113507. The reversal of 2103021113503 is 3053111203012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103021113503 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 (2103021113507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19839821773 + ... + 19839821878.

It is an arithmetic number, because the mean of its divisors is an integer number (535675189302).

Almost surely, 2^{2103021113503} is an apocalyptic number.

2103021113503 is a deficient number, since it is larger than the sum of its proper divisors (39679643705).

2103021113503 is an equidigital number, since it uses as much as digits as its factorization.

2103021113503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39679643704.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 2103021113503 its reverse (3053111203012), we get a palindrome (5156132316515).

The spelling of 2103021113503 in words is "two trillion, one hundred three billion, twenty-one million, one hundred thirteen thousand, five hundred three".