1135523211 has 32 divisors (see below), whose sum is σ = 1658861568. Its totient is φ = 687813120.

The previous prime is 1135523209. The next prime is 1135523227. The reversal of 1135523211 is 1123255311.

It is not a de Polignac number, because 1135523211 - 2¹ = 1135523209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1135523281) 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 31 ways as a sum of consecutive naturals, for example, 1016025 + ... + 1017141.

It is an arithmetic number, because the mean of its divisors is an integer number (51839424).

Almost surely, 2^1135523211 is an apocalyptic number.

1135523211 is a deficient number, since it is larger than the sum of its proper divisors (523338357).

1135523211 is a wasteful number, since it uses less digits than its factorization.

1135523211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its digits is 900, while the sum is 24.

The square root of 1135523211 is about 33697.5252948937. The cubic root of 1135523211 is about 1043.2746912729.

Adding to 1135523211 its reverse (1123255311), we get a palindrome (2258778522).

The spelling of 1135523211 in words is "one billion, one hundred thirty-five million, five hundred twenty-three thousand, two hundred eleven".