516321354371 has 2 divisors, whose sum is σ = 516321354372. Its totient is φ = 516321354370.

The previous prime is 516321354319. The next prime is 516321354403. The reversal of 516321354371 is 173453123615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 516321354371 - 2¹⁰ = 516321353347 is a prime.

It is not a weakly prime, because it can be changed into another prime (516321354271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258160677185 + 258160677186.

It is an arithmetic number, because the mean of its divisors is an integer number (258160677186).

Almost surely, 2^516321354371 is an apocalyptic number.

516321354371 is a deficient number, since it is larger than the sum of its proper divisors (1).

516321354371 is an equidigital number, since it uses as much as digits as its factorization.

516321354371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 41.

Adding to 516321354371 its reverse (173453123615), we get a palindrome (689774477986).

The spelling of 516321354371 in words is "five hundred sixteen billion, three hundred twenty-one million, three hundred fifty-four thousand, three hundred seventy-one".