521304312112051 has 32 divisors (see below), whose sum is σ = 652919117437440. Its totient is φ = 410406302237184.

The previous prime is 521304312112037. The next prime is 521304312112081. The reversal of 521304312112051 is 150211213403125.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-521304312112051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521304312112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2698808505 + ... + 2699001658.

It is an arithmetic number, because the mean of its divisors is an integer number (20403722419920).

Almost surely, 2^{521304312112051} is an apocalyptic number.

521304312112051 is a deficient number, since it is larger than the sum of its proper divisors (131614805325389).

521304312112051 is a wasteful number, since it uses less digits than its factorization.

521304312112051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397810235.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 521304312112051 its reverse (150211213403125), we get a palindrome (671515525515176).

The spelling of 521304312112051 in words is "five hundred twenty-one trillion, three hundred four billion, three hundred twelve million, one hundred twelve thousand, fifty-one".