51142112523 has 6 divisors (see below), whose sum is σ = 73871940324. Its totient is φ = 34094741676.

The previous prime is 51142112471. The next prime is 51142112531. The reversal of 51142112523 is 32521124115.

It is a happy number.

51142112523 is a `hidden beast` number, since 5 + 114 + 21 + 1 + 2 + 523 = 666.

It is not a de Polignac number, because 51142112523 - 2¹² = 51142108427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51142112533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2841228465 + ... + 2841228482.

It is an arithmetic number, because the mean of its divisors is an integer number (12311990054).

Almost surely, 2^51142112523 is an apocalyptic number.

51142112523 is a deficient number, since it is larger than the sum of its proper divisors (22729827801).

51142112523 is a wasteful number, since it uses less digits than its factorization.

51142112523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682456953 (or 5682456950 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 51142112523 its reverse (32521124115), we get a palindrome (83663236638).

The spelling of 51142112523 in words is "fifty-one billion, one hundred forty-two million, one hundred twelve thousand, five hundred twenty-three".