2011128193 has 4 divisors (see below), whose sum is σ = 2076003328. Its totient is φ = 1946253060.

The previous prime is 2011128181. The next prime is 2011128199. The reversal of 2011128193 is 3918211102.

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 2011128193 - 2²¹ = 2009031041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011128199) 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, 32437521 + ... + 32437582.

It is an arithmetic number, because the mean of its divisors is an integer number (519000832).

Almost surely, 2^2011128193 is an apocalyptic number.

It is an amenable number.

2011128193 is a deficient number, since it is larger than the sum of its proper divisors (64875135).

2011128193 is an equidigital number, since it uses as much as digits as its factorization.

2011128193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64875134.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 2011128193 is about 44845.6039428616. The cubic root of 2011128193 is about 1262.2535033317.

Adding to 2011128193 its reverse (3918211102), we get a palindrome (5929339295).

The spelling of 2011128193 in words is "two billion, eleven million, one hundred twenty-eight thousand, one hundred ninety-three".