11172511033 has 8 divisors (see below), whose sum is σ = 11192730120. Its totient is φ = 11152310400.

The previous prime is 11172511019. The next prime is 11172511057. The reversal of 11172511033 is 33011527111.

It can be written as a sum of positive squares in 4 ways, for example, as 2740313104 + 8432197929 = 52348^2 + 91827^2 .

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 11172511033 - 2¹³ = 11172502841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11172510989 and 11172511007.

It is not an unprimeable number, because it can be changed into a prime (11172511633) 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, 1769983 + ... + 1776283.

It is an arithmetic number, because the mean of its divisors is an integer number (1399091265).

Almost surely, 2^11172511033 is an apocalyptic number.

It is an amenable number.

11172511033 is a deficient number, since it is larger than the sum of its proper divisors (20219087).

11172511033 is an equidigital number, since it uses as much as digits as its factorization.

11172511033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227.

The product of its (nonzero) digits is 630, while the sum is 25.

The spelling of 11172511033 in words is "eleven billion, one hundred seventy-two million, five hundred eleven thousand, thirty-three".