11203928172 has 36 divisors (see below), whose sum is σ = 28330433040. Its totient is φ = 3733404192.

The previous prime is 11203928171. The next prime is 11203928173. The reversal of 11203928172 is 27182930211.

11203928172 is a `hidden beast` number, since 1 + 120 + 392 + 81 + 72 = 666.

11203928172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11203928171) and next prime (11203928173).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×11203928172³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11203928171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61873 + ... + 161975.

Almost surely, 2^11203928172 is an apocalyptic number.

11203928172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11203928172 is an abundant number, since it is smaller than the sum of its proper divisors (17126504868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11203928172 is a wasteful number, since it uses less digits than its factorization.

11203928172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103222 (or 103217 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 11203928172 in words is "eleven billion, two hundred three million, nine hundred twenty-eight thousand, one hundred seventy-two".