51303243361 has 8 divisors (see below), whose sum is σ = 51350780160. Its totient is φ = 51255731472.

The previous prime is 51303243349. The next prime is 51303243371. The reversal of 51303243361 is 16334230315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51303243361 - 2¹³ = 51303235169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51303243311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9062950 + ... + 9068608.

It is an arithmetic number, because the mean of its divisors is an integer number (6418847520).

Almost surely, 2^51303243361 is an apocalyptic number.

It is an amenable number.

51303243361 is a deficient number, since it is larger than the sum of its proper divisors (47536799).

51303243361 is a wasteful number, since it uses less digits than its factorization.

51303243361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12455.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 51303243361 its reverse (16334230315), we get a palindrome (67637473676).

The spelling of 51303243361 in words is "fifty-one billion, three hundred three million, two hundred forty-three thousand, three hundred sixty-one".