13103555405 has 8 divisors (see below), whose sum is σ = 15731806200. Its totient is φ = 10477817856.

The previous prime is 13103555401. The next prime is 13103555411. The reversal of 13103555405 is 50455530131.

It can be written as a sum of positive squares in 4 ways, for example, as 1894251529 + 11209303876 = 43523^2 + 105874^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13103555405 - 2² = 13103555401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103555401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616820 + ... + 637709.

It is an arithmetic number, because the mean of its divisors is an integer number (1966475775).

Almost surely, 2^13103555405 is an apocalyptic number.

It is an amenable number.

13103555405 is a deficient number, since it is larger than the sum of its proper divisors (2628250795).

13103555405 is a wasteful number, since it uses less digits than its factorization.

13103555405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256623.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 13103555405 in words is "thirteen billion, one hundred three million, five hundred fifty-five thousand, four hundred five".