51234210211523 has 2 divisors, whose sum is σ = 51234210211524. Its totient is φ = 51234210211522.

The previous prime is 51234210211501. The next prime is 51234210211553. The reversal of 51234210211523 is 32511201243215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51234210211523 - 2¹⁰ = 51234210210499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51234210211523.

It is not a weakly prime, because it can be changed into another prime (51234210211553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25617105105761 + 25617105105762.

It is an arithmetic number, because the mean of its divisors is an integer number (25617105105762).

Almost surely, 2^{51234210211523} is an apocalyptic number.

51234210211523 is a deficient number, since it is larger than the sum of its proper divisors (1).

51234210211523 is an equidigital number, since it uses as much as digits as its factorization.

51234210211523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 51234210211523 its reverse (32511201243215), we get a palindrome (83745411454738).

The spelling of 51234210211523 in words is "fifty-one trillion, two hundred thirty-four billion, two hundred ten million, two hundred eleven thousand, five hundred twenty-three".