12735435503 has 12 divisors (see below), whose sum is σ = 14833003752. Its totient is φ = 10902593520.

The previous prime is 12735435481. The next prime is 12735435527. The reversal of 12735435503 is 30553453721.

It is not a de Polignac number, because 12735435503 - 2²⁰ = 12734386927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735435563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120500 + ... + 199977.

It is an arithmetic number, because the mean of its divisors is an integer number (1236083646).

Almost surely, 2^12735435503 is an apocalyptic number.

12735435503 is a deficient number, since it is larger than the sum of its proper divisors (2097568249).

12735435503 is an equidigital number, since it uses as much as digits as its factorization.

12735435503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321302 (or 321295 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 38.

The spelling of 12735435503 in words is "twelve billion, seven hundred thirty-five million, four hundred thirty-five thousand, five hundred three".