1171020288 has 80 divisors (see below), whose sum is σ = 3220436736. Its totient is φ = 377733120.

The previous prime is 1171020281. The next prime is 1171020307. The reversal of 1171020288 is 8820201711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1171020281) 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 7 ways as a sum of consecutive naturals, for example, 35320 + ... + 59912.

Almost surely, 2^1171020288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171020288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610218368).

1171020288 is an abundant number, since it is smaller than the sum of its proper divisors (2049416448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1171020288 is an equidigital number, since it uses as much as digits as its factorization.

1171020288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24645 (or 24629 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 1171020288 is about 34220.1736991500. The cubic root of 1171020288 is about 1054.0344521238.

Adding to 1171020288 its reverse (8820201711), we get a palindrome (9991221999).

The spelling of 1171020288 in words is "one billion, one hundred seventy-one million, twenty thousand, two hundred eighty-eight".