51414216112321 has 2 divisors, whose sum is σ = 51414216112322. Its totient is φ = 51414216112320.

The previous prime is 51414216112309. The next prime is 51414216112349. The reversal of 51414216112321 is 12321161241415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38735375250625 + 12678840861696 = 6223775^2 + 3560736^2 .

It is a cyclic number.

It is not a de Polignac number, because 51414216112321 - 2¹¹ = 51414216110273 is a prime.

It is not a weakly prime, because it can be changed into another prime (51414216112381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25707108056160 + 25707108056161.

It is an arithmetic number, because the mean of its divisors is an integer number (25707108056161).

Almost surely, 2^{51414216112321} is an apocalyptic number.

It is an amenable number.

51414216112321 is a deficient number, since it is larger than the sum of its proper divisors (1).

51414216112321 is an equidigital number, since it uses as much as digits as its factorization.

51414216112321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

Adding to 51414216112321 its reverse (12321161241415), we get a palindrome (63735377353736).

The spelling of 51414216112321 in words is "fifty-one trillion, four hundred fourteen billion, two hundred sixteen million, one hundred twelve thousand, three hundred twenty-one".