12535045013 has 4 divisors (see below), whose sum is σ = 13272400620. Its totient is φ = 11797689408.

The previous prime is 12535044967. The next prime is 12535045027. The reversal of 12535045013 is 31054053521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10552836529 + 1982208484 = 102727^2 + 44522^2 .

It is a cyclic number.

It is not a de Polignac number, because 12535045013 - 2²⁶ = 12467936149 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 (12535045063) 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, 368677778 + ... + 368677811.

It is an arithmetic number, because the mean of its divisors is an integer number (3318100155).

Almost surely, 2^12535045013 is an apocalyptic number.

It is an amenable number.

12535045013 is a deficient number, since it is larger than the sum of its proper divisors (737355607).

12535045013 is an equidigital number, since it uses as much as digits as its factorization.

12535045013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737355606.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 12535045013 its reverse (31054053521), we get a palindrome (43589098534).

The spelling of 12535045013 in words is "twelve billion, five hundred thirty-five million, forty-five thousand, thirteen".