11858203203 has 64 divisors (see below), whose sum is σ = 20304691200. Its totient is φ = 6101911200.

The previous prime is 11858203157. The next prime is 11858203213. The reversal of 11858203203 is 30230285811.

It is not a de Polignac number, because 11858203203 - 2⁶ = 11858203139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11858203213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1206238 + ... + 1216028.

It is an arithmetic number, because the mean of its divisors is an integer number (317260800).

Almost surely, 2^11858203203 is an apocalyptic number.

11858203203 is a deficient number, since it is larger than the sum of its proper divisors (8446487997).

11858203203 is a wasteful number, since it uses less digits than its factorization.

11858203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9933 (or 9919 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 11858203203 in words is "eleven billion, eight hundred fifty-eight million, two hundred three thousand, two hundred three".