2311121056 has 24 divisors (see below), whose sum is σ = 4604844384. Its totient is φ = 1141636800.

The previous prime is 2311121051. The next prime is 2311121077. The reversal of 2311121056 is 6501211132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2311121051) 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 3 ways as a sum of consecutive naturals, for example, 432420 + ... + 437731.

It is an arithmetic number, because the mean of its divisors is an integer number (191868516).

Almost surely, 2^2311121056 is an apocalyptic number.

It is an amenable number.

2311121056 is a deficient number, since it is larger than the sum of its proper divisors (2293723328).

2311121056 is an equidigital number, since it uses as much as digits as its factorization.

2311121056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870244 (or 870236 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2311121056 is about 48074.1204391718. The cubic root of 2311121056 is about 1322.1302181911.

Adding to 2311121056 its reverse (6501211132), we get a palindrome (8812332188).

The spelling of 2311121056 in words is "two billion, three hundred eleven million, one hundred twenty-one thousand, fifty-six".