2311121123244 has 144 divisors (see below), whose sum is σ = 6214419731520. Its totient is φ = 722904698880.

The previous prime is 2311121123209. The next prime is 2311121123329. The reversal of 2311121123244 is 4423211211132.

2311121123244 is a `hidden beast` number, since 2 + 311 + 1 + 21 + 1 + 2 + 324 + 4 = 666.

2311121123244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11154804 + ... + 11360100.

It is an arithmetic number, because the mean of its divisors is an integer number (43155692580).

Almost surely, 2^{2311121123244} 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 2311121123244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3107209865760).

2311121123244 is an abundant number, since it is smaller than the sum of its proper divisors (3903298608276).

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

2311121123244 is a wasteful number, since it uses less digits than its factorization.

2311121123244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205640 (or 205635 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 2311121123244 its reverse (4423211211132), we get a palindrome (6734332334376).

The spelling of 2311121123244 in words is "two trillion, three hundred eleven billion, one hundred twenty-one million, one hundred twenty-three thousand, two hundred forty-four".