11553105206103 has 4 divisors (see below), whose sum is σ = 15404140274808. Its totient is φ = 7702070137400.

The previous prime is 11553105206099. The next prime is 11553105206183. The reversal of 11553105206103 is 30160250135511.

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

It is a cyclic number.

It is not a de Polignac number, because 11553105206103 - 2² = 11553105206099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553105206183) 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, 1925517534348 + ... + 1925517534353.

It is an arithmetic number, because the mean of its divisors is an integer number (3851035068702).

Almost surely, 2^{11553105206103} is an apocalyptic number.

11553105206103 is a deficient number, since it is larger than the sum of its proper divisors (3851035068705).

11553105206103 is an equidigital number, since it uses as much as digits as its factorization.

11553105206103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851035068704.

The product of its (nonzero) digits is 13500, while the sum is 33.

The spelling of 11553105206103 in words is "eleven trillion, five hundred fifty-three billion, one hundred five million, two hundred six thousand, one hundred three".