12803606111 has 4 divisors (see below), whose sum is σ = 13245109800. Its totient is φ = 12362102424.

The previous prime is 12803606093. The next prime is 12803606129. The reversal of 12803606111 is 11160630821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11160630821 = 61 ⋅182961161.

It is an interprime number because it is at equal distance from previous prime (12803606093) and next prime (12803606129).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12803606111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 441503659 = 12803606111 / (1 + 2 + 8 + 0 + 3 + 6 + 0 + 6 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12803606131) 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, 220751801 + ... + 220751858.

It is an arithmetic number, because the mean of its divisors is an integer number (3311277450).

Almost surely, 2^12803606111 is an apocalyptic number.

12803606111 is a deficient number, since it is larger than the sum of its proper divisors (441503689).

12803606111 is an equidigital number, since it uses as much as digits as its factorization.

12803606111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441503688.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 12803606111 in words is "twelve billion, eight hundred three million, six hundred six thousand, one hundred eleven".