2103205435535 has 4 divisors (see below), whose sum is σ = 2523846522648. Its totient is φ = 1682564348424.

The previous prime is 2103205435531. The next prime is 2103205435543. The reversal of 2103205435535 is 5355345023012.

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 2103205435535 - 2² = 2103205435531 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 (2103205435531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210320543549 + ... + 210320543558.

It is an arithmetic number, because the mean of its divisors is an integer number (630961630662).

Almost surely, 2^{2103205435535} is an apocalyptic number.

2103205435535 is a deficient number, since it is larger than the sum of its proper divisors (420641087113).

2103205435535 is an equidigital number, since it uses as much as digits as its factorization.

2103205435535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420641087112.

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 2103205435535 in words is "two trillion, one hundred three billion, two hundred five million, four hundred thirty-five thousand, five hundred thirty-five".