1117121152 has 64 divisors (see below), whose sum is σ = 2559384000. Its totient is φ = 475766784.

The previous prime is 1117121149. The next prime is 1117121183. The reversal of 1117121152 is 2511217111.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142224 + ... + 149872.

It is an arithmetic number, because the mean of its divisors is an integer number (39990375).

Almost surely, 2^1117121152 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 1117121152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279692000).

1117121152 is an abundant number, since it is smaller than the sum of its proper divisors (1442262848).

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

1117121152 is an equidigital number, since it uses as much as digits as its factorization.

1117121152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7833 (or 7821 counting only the distinct ones).

The product of its digits is 140, while the sum is 22.

The square root of 1117121152 is about 33423.3623682597. The cubic root of 1117121152 is about 1037.6082711219.

Adding to 1117121152 its reverse (2511217111), we get a palindrome (3628338263).

It can be divided in two parts, 11171 and 21152, that added together give a palindrome (32323).

The spelling of 1117121152 in words is "one billion, one hundred seventeen million, one hundred twenty-one thousand, one hundred fifty-two".