11605473203 has 4 divisors (see below), whose sum is σ = 11626309440. Its totient is φ = 11584636968.

The previous prime is 11605473197. The next prime is 11605473211. The reversal of 11605473203 is 30237450611.

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 11605473203 - 2²⁶ = 11538364339 is a prime.

It is a super-3 number, since 3×11605473203³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11605473203.

It is not an unprimeable number, because it can be changed into a prime (11605473293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10417283 + ... + 10418396.

It is an arithmetic number, because the mean of its divisors is an integer number (2906577360).

Almost surely, 2^11605473203 is an apocalyptic number.

11605473203 is a deficient number, since it is larger than the sum of its proper divisors (20836237).

11605473203 is an equidigital number, since it uses as much as digits as its factorization.

11605473203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20836236.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 11605473203 in words is "eleven billion, six hundred five million, four hundred seventy-three thousand, two hundred three".