2311521222324 has 48 divisors (see below), whose sum is σ = 5581395731520. Its totient is φ = 743689632000.

The previous prime is 2311521222293. The next prime is 2311521222337. The reversal of 2311521222324 is 4232221251132.

It is a happy number.

2311521222324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2311521222324² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2311521222291 and 2311521222300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62334 + ... + 2151029.

It is an arithmetic number, because the mean of its divisors is an integer number (116279077740).

Almost surely, 2^{2311521222324} is an apocalyptic number.

It is an amenable number.

2311521222324 is an abundant number, since it is smaller than the sum of its proper divisors (3269874509196).

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

2311521222324 is a wasteful number, since it uses less digits than its factorization.

2311521222324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216400 (or 2216398 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 2311521222324 its reverse (4232221251132), we get a palindrome (6543742473456).

The spelling of 2311521222324 in words is "two trillion, three hundred eleven billion, five hundred twenty-one million, two hundred twenty-two thousand, three hundred twenty-four".