51234210320112 has 240 divisors, whose sum is σ = 150028929730368. Its totient is φ = 16290823127040.

The previous prime is 51234210320057. The next prime is 51234210320119. The reversal of 51234210320112 is 21102301243215.

It is a happy number.

51234210320112 is a `hidden beast` number, since 5 + 1 + 2 + 342 + 103 + 201 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51234210320119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1829975298 + ... + 1830003294.

Almost surely, 2^{51234210320112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51234210320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75014464865184).

51234210320112 is an abundant number, since it is smaller than the sum of its proper divisors (98794719410256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51234210320112 is a wasteful number, since it uses less digits than its factorization.

51234210320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29528 (or 29519 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 51234210320112 its reverse (21102301243215), we get a palindrome (72336511563327).

The spelling of 51234210320112 in words is "fifty-one trillion, two hundred thirty-four billion, two hundred ten million, three hundred twenty thousand, one hundred twelve".