2005011520103 has 4 divisors (see below), whose sum is σ = 2027539739520. Its totient is φ = 1982483300688.

The previous prime is 2005011520097. The next prime is 2005011520111. The reversal of 2005011520103 is 3010251105002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2005011520103 - 2¹⁸ = 2005011257959 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 (2005011525103) 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, 11264109575 + ... + 11264109752.

It is an arithmetic number, because the mean of its divisors is an integer number (506884934880).

Almost surely, 2^{2005011520103} is an apocalyptic number.

2005011520103 is a deficient number, since it is larger than the sum of its proper divisors (22528219417).

2005011520103 is an equidigital number, since it uses as much as digits as its factorization.

2005011520103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22528219416.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 2005011520103 its reverse (3010251105002), we get a palindrome (5015262625105).

The spelling of 2005011520103 in words is "two trillion, five billion, eleven million, five hundred twenty thousand, one hundred three".