51323101042511 has 2 divisors, whose sum is σ = 51323101042512. Its totient is φ = 51323101042510.

The previous prime is 51323101042487. The next prime is 51323101042513. The reversal of 51323101042511 is 11524010132315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51323101042511 is a prime.

Together with 51323101042513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51323101042513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25661550521255 + 25661550521256.

It is an arithmetic number, because the mean of its divisors is an integer number (25661550521256).

Almost surely, 2^{51323101042511} is an apocalyptic number.

51323101042511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51323101042511 is an equidigital number, since it uses as much as digits as its factorization.

51323101042511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 51323101042511 its reverse (11524010132315), we get a palindrome (62847111174826).

The spelling of 51323101042511 in words is "fifty-one trillion, three hundred twenty-three billion, one hundred one million, forty-two thousand, five hundred eleven".