51232120344 has 48 divisors (see below), whose sum is σ = 138964339800. Its totient is φ = 17051443584.

The previous prime is 51232120327. The next prime is 51232120349. The reversal of 51232120344 is 44302123215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51232120349) 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 11 ways as a sum of consecutive naturals, for example, 492429 + ... + 587324.

Almost surely, 2^51232120344 is an apocalyptic number.

It is an amenable number.

51232120344 is an abundant number, since it is smaller than the sum of its proper divisors (87732219456).

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

51232120344 is a wasteful number, since it uses less digits than its factorization.

51232120344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080424 (or 1080417 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 51232120344 its reverse (44302123215), we get a palindrome (95534243559).

The spelling of 51232120344 in words is "fifty-one billion, two hundred thirty-two million, one hundred twenty thousand, three hundred forty-four".