51423230320 has 120 divisors (see below), whose sum is σ = 151722507888. Its totient is φ = 16028006400.

The previous prime is 51423230297. The next prime is 51423230321. The reversal of 51423230320 is 2303232415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51423230321) 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 23 ways as a sum of consecutive naturals, for example, 553161 + ... + 639400.

Almost surely, 2^51423230320 is an apocalyptic number.

It is an amenable number.

51423230320 is an abundant number, since it is smaller than the sum of its proper divisors (100299277568).

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

51423230320 is a wasteful number, since it uses less digits than its factorization.

51423230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192599 (or 1192586 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 51423230320 its reverse (2303232415), we get a palindrome (53726462735).

The spelling of 51423230320 in words is "fifty-one billion, four hundred twenty-three million, two hundred thirty thousand, three hundred twenty".