2124040213321 has 8 divisors (see below), whose sum is σ = 2287459314504. Its totient is φ = 1960625596800.

The previous prime is 2124040213313. The next prime is 2124040213327. The reversal of 2124040213321 is 1233120404212.

It can be written as a sum of positive squares in 4 ways, for example, as 23175495225 + 2100864718096 = 152235^2 + 1449436^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2124040213321 - 2³ = 2124040213313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2124040213327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103246 + ... + 2063671.

It is an arithmetic number, because the mean of its divisors is an integer number (285932414313).

Almost surely, 2^{2124040213321} is an apocalyptic number.

It is an amenable number.

2124040213321 is a deficient number, since it is larger than the sum of its proper divisors (163419101183).

2124040213321 is a wasteful number, since it uses less digits than its factorization.

2124040213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242331.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2124040213321 its reverse (1233120404212), we get a palindrome (3357160617533).

The spelling of 2124040213321 in words is "two trillion, one hundred twenty-four billion, forty million, two hundred thirteen thousand, three hundred twenty-one".