51145141312321 has 12 divisors (see below), whose sum is σ = 59532391188288. Its totient is φ = 43811412652392.

The previous prime is 51145141312289. The next prime is 51145141312333. The reversal of 51145141312321 is 12321314154115.

It is not a de Polignac number, because 51145141312321 - 2⁵ = 51145141312289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51145141312621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324681181 + ... + 324838666.

It is an arithmetic number, because the mean of its divisors is an integer number (4961032599024).

Almost surely, 2^{51145141312321} is an apocalyptic number.

It is an amenable number.

51145141312321 is a deficient number, since it is larger than the sum of its proper divisors (8387249875967).

51145141312321 is a wasteful number, since it uses less digits than its factorization.

51145141312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649521468 (or 649521461 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

Adding to 51145141312321 its reverse (12321314154115), we get a palindrome (63466455466436).

The spelling of 51145141312321 in words is "fifty-one trillion, one hundred forty-five billion, one hundred forty-one million, three hundred twelve thousand, three hundred twenty-one".