1171233385 has 16 divisors (see below), whose sum is σ = 1606839552. Its totient is φ = 802843200.

The previous prime is 1171233383. The next prime is 1171233407. The reversal of 1171233385 is 5833321711.

It is not a de Polignac number, because 1171233385 - 2¹ = 1171233383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1171233385.

It is not an unprimeable number, because it can be changed into a prime (1171233383) 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 15 ways as a sum of consecutive naturals, for example, 149875 + ... + 157495.

It is an arithmetic number, because the mean of its divisors is an integer number (100427472).

Almost surely, 2^1171233385 is an apocalyptic number.

It is an amenable number.

1171233385 is a deficient number, since it is larger than the sum of its proper divisors (435606167).

1171233385 is an equidigital number, since it uses as much as digits as its factorization.

1171233385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12024.

The product of its digits is 15120, while the sum is 34.

The square root of 1171233385 is about 34223.2871740866. The cubic root of 1171233385 is about 1054.0983843941.

The spelling of 1171233385 in words is "one billion, one hundred seventy-one million, two hundred thirty-three thousand, three hundred eighty-five".