2143312041321 has 24 divisors (see below), whose sum is σ = 3398851931904. Its totient is φ = 1290703246560.

The previous prime is 2143312041313. The next prime is 2143312041323. The reversal of 2143312041321 is 1231402133412.

2143312041321 is a `hidden beast` number, since 2 + 1 + 4 + 331 + 2 + 0 + 4 + 1 + 321 = 666.

It is not a de Polignac number, because 2143312041321 - 2³ = 2143312041313 is a prime.

It is a super-2 number, since 2×2143312041321² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2143312041323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68932281 + ... + 68963366.

It is an arithmetic number, because the mean of its divisors is an integer number (141618830496).

Almost surely, 2^{2143312041321} is an apocalyptic number.

It is an amenable number.

2143312041321 is a deficient number, since it is larger than the sum of its proper divisors (1255539890583).

2143312041321 is a wasteful number, since it uses less digits than its factorization.

2143312041321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137895821 (or 137895818 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 2143312041321 its reverse (1231402133412), we get a palindrome (3374714174733).

The spelling of 2143312041321 in words is "two trillion, one hundred forty-three billion, three hundred twelve million, forty-one thousand, three hundred twenty-one".