1128118481 has 16 divisors (see below), whose sum is σ = 1297503360. Its totient is φ = 960812160.

The previous prime is 1128118477. The next prime is 1128118501. The reversal of 1128118481 is 1848118211.

It is not a de Polignac number, because 1128118481 - 2² = 1128118477 is a prime.

It is a super-2 number, since 2×1128118481² = 2545302614347494722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128118451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1161326 + ... + 1162296.

It is an arithmetic number, because the mean of its divisors is an integer number (81093960).

Almost surely, 2^1128118481 is an apocalyptic number.

It is an amenable number.

1128118481 is a deficient number, since it is larger than the sum of its proper divisors (169384879).

1128118481 is an equidigital number, since it uses as much as digits as its factorization.

1128118481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its digits is 4096, while the sum is 35.

The square root of 1128118481 is about 33587.4750613975. The cubic root of 1128118481 is about 1041.0020178101.

The spelling of 1128118481 in words is "one billion, one hundred twenty-eight million, one hundred eighteen thousand, four hundred eighty-one".