51323101042543 has 16 divisors (see below), whose sum is σ = 59315659802784. Its totient is φ = 43888101672960.

The previous prime is 51323101042531. The next prime is 51323101042547. The reversal of 51323101042543 is 34524010132315.

It is a cyclic number.

It is not a de Polignac number, because 51323101042543 - 2⁵ = 51323101042511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51323101042499 and 51323101042508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51323101042547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76891980 + ... + 77556577.

It is an arithmetic number, because the mean of its divisors is an integer number (3707228737674).

Almost surely, 2^{51323101042543} is an apocalyptic number.

51323101042543 is a deficient number, since it is larger than the sum of its proper divisors (7992558760241).

51323101042543 is a wasteful number, since it uses less digits than its factorization.

51323101042543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154450362.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 51323101042543 its reverse (34524010132315), we get a palindrome (85847111174858).

The spelling of 51323101042543 in words is "fifty-one trillion, three hundred twenty-three billion, one hundred one million, forty-two thousand, five hundred forty-three".