51323023204012 has 48 divisors (see below), whose sum is σ = 106292716830720. Its totient is φ = 21215682734400.

The previous prime is 51323023203979. The next prime is 51323023204021. The reversal of 51323023204012 is 21040232032315.

It is a happy number.

51323023204012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51323023204012² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31085164 + ... + 32694547.

It is an arithmetic number, because the mean of its divisors is an integer number (2214431600640).

Almost surely, 2^{51323023204012} is an apocalyptic number.

It is an amenable number.

51323023204012 is an abundant number, since it is smaller than the sum of its proper divisors (54969693626708).

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

51323023204012 is a wasteful number, since it uses less digits than its factorization.

51323023204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63780742 (or 63780740 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 51323023204012 its reverse (21040232032315), we get a palindrome (72363255236327).

The spelling of 51323023204012 in words is "fifty-one trillion, three hundred twenty-three billion, twenty-three million, two hundred four thousand, twelve".