12111528353 has 4 divisors (see below), whose sum is σ = 12502222848. Its totient is φ = 11720833860.

The previous prime is 12111528343. The next prime is 12111528367. The reversal of 12111528353 is 35382511121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12111528353 - 2¹⁶ = 12111462817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12111528343) 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, 195347201 + ... + 195347262.

It is an arithmetic number, because the mean of its divisors is an integer number (3125555712).

Almost surely, 2^12111528353 is an apocalyptic number.

It is an amenable number.

12111528353 is a deficient number, since it is larger than the sum of its proper divisors (390694495).

12111528353 is an equidigital number, since it uses as much as digits as its factorization.

12111528353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390694494.

The product of its digits is 7200, while the sum is 32.

The spelling of 12111528353 in words is "twelve billion, one hundred eleven million, five hundred twenty-eight thousand, three hundred fifty-three".