51023323321 has 8 divisors (see below), whose sum is σ = 51321120480. Its totient is φ = 50725668192.

The previous prime is 51023323301. The next prime is 51023323327. The reversal of 51023323321 is 12332332015.

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 51023323321 - 2⁷ = 51023323193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51023323327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733381 + ... + 799933.

It is an arithmetic number, because the mean of its divisors is an integer number (6415140060).

Almost surely, 2^51023323321 is an apocalyptic number.

It is an amenable number.

51023323321 is a deficient number, since it is larger than the sum of its proper divisors (297797159).

51023323321 is a wasteful number, since it uses less digits than its factorization.

51023323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71015.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 51023323321 its reverse (12332332015), we get a palindrome (63355655336).

The spelling of 51023323321 in words is "fifty-one billion, twenty-three million, three hundred twenty-three thousand, three hundred twenty-one".