1128338211 has 64 divisors (see below), whose sum is σ = 2027160576. Its totient is φ = 539136000.

The previous prime is 1128338203. The next prime is 1128338213.

1128338211 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1128338211 - 2³ = 1128338203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1128338213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1203735 + ... + 1204671.

It is an arithmetic number, because the mean of its divisors is an integer number (31674384).

Almost surely, 2^1128338211 is an apocalyptic number.

1128338211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1128338211 is a deficient number, since it is larger than the sum of its proper divisors (898822365).

1128338211 is a wasteful number, since it uses less digits than its factorization.

1128338211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372.

The product of its digits is 2304, while the sum is 30.

The square root of 1128338211 is about 33590.7459131232. The cubic root of 1128338211 is about 1041.0696007008.

It can be divided in two parts, 11283 and 38211, that added together give a palindrome (49494).

The spelling of 1128338211 in words is "one billion, one hundred twenty-eight million, three hundred thirty-eight thousand, two hundred eleven".