2311121012 has 48 divisors (see below), whose sum is σ = 4432848000. Its totient is φ = 1050102144.

The previous prime is 2311121009. The next prime is 2311121023. The reversal of 2311121012 is 2101211132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342689 + ... + 349367.

It is an arithmetic number, because the mean of its divisors is an integer number (92351000).

Almost surely, 2^2311121012 is an apocalyptic number.

It is an amenable number.

2311121012 is a deficient number, since it is larger than the sum of its proper divisors (2121726988).

2311121012 is a wasteful number, since it uses less digits than its factorization.

2311121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888 (or 6886 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2311121012 is about 48074.1199815452. The cubic root of 2311121012 is about 1322.1302098007.

Adding to 2311121012 its reverse (2101211132), we get a palindrome (4412332144).

The spelling of 2311121012 in words is "two billion, three hundred eleven million, one hundred twenty-one thousand, twelve".