51034335321 has 4 divisors (see below), whose sum is σ = 68045780432. Its totient is φ = 34022890212.

The previous prime is 51034335307. The next prime is 51034335323. The reversal of 51034335321 is 12353343015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-51034335321 is a prime.

It is a super-3 number, since 3×51034335321³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51034335323) 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 3 ways as a sum of consecutive naturals, for example, 8505722551 + ... + 8505722556.

It is an arithmetic number, because the mean of its divisors is an integer number (17011445108).

Almost surely, 2^51034335321 is an apocalyptic number.

It is an amenable number.

51034335321 is a deficient number, since it is larger than the sum of its proper divisors (17011445111).

51034335321 is a wasteful number, since it uses less digits than its factorization.

51034335321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17011445110.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 51034335321 its reverse (12353343015), we get a palindrome (63387678336).

The spelling of 51034335321 in words is "fifty-one billion, thirty-four million, three hundred thirty-five thousand, three hundred twenty-one".