12803081535 has 20 divisors (see below), whose sum is σ = 22950709848. Its totient is φ = 6828309936.

The previous prime is 12803081519. The next prime is 12803081549. The reversal of 12803081535 is 53518030821.

12803081535 is a `hidden beast` number, since 12 + 8 + 0 + 30 + 81 + 535 = 666.

It is not a de Polignac number, because 12803081535 - 2⁴ = 12803081519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12803081535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15805869 + ... + 15806678.

Almost surely, 2^12803081535 is an apocalyptic number.

12803081535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12803081535 is a deficient number, since it is larger than the sum of its proper divisors (10147628313).

12803081535 is an equidigital number, since it uses as much as digits as its factorization.

12803081535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31612564 (or 31612555 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 12803081535 in words is "twelve billion, eight hundred three million, eighty-one thousand, five hundred thirty-five".