51321030142152 has 64 divisors (see below), whose sum is σ = 128552431536000. Its totient is φ = 17073711749120.

The previous prime is 51321030142133. The next prime is 51321030142169. The reversal of 51321030142152 is 25124103012315.

It is a happy number.

51321030142152 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 2×51321030142152² (a number of 28 digits) contains 22 as substring.

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, 51504502 + ... + 52491482.

It is an arithmetic number, because the mean of its divisors is an integer number (2008631742750).

Almost surely, 2^{51321030142152} is an apocalyptic number.

It is an amenable number.

51321030142152 is an abundant number, since it is smaller than the sum of its proper divisors (77231401393848).

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

51321030142152 is a wasteful number, since it uses less digits than its factorization.

51321030142152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991206 (or 991202 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 51321030142152 its reverse (25124103012315), we get a palindrome (76445133154467).

The spelling of 51321030142152 in words is "fifty-one trillion, three hundred twenty-one billion, thirty million, one hundred forty-two thousand, one hundred fifty-two".