10204112561521 has 8 divisors (see below), whose sum is σ = 10264668568704. Its totient is φ = 10143645024240.

The previous prime is 10204112561471. The next prime is 10204112561567. The reversal of 10204112561521 is 12516521140201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10204112561521 - 2⁷ = 10204112561393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10204112562521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21886105 + ... + 22347478.

It is an arithmetic number, because the mean of its divisors is an integer number (1283083571088).

Almost surely, 2^{10204112561521} is an apocalyptic number.

It is an amenable number.

10204112561521 is a deficient number, since it is larger than the sum of its proper divisors (60556007183).

10204112561521 is a wasteful number, since it uses less digits than its factorization.

10204112561521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44234951.

The product of its (nonzero) digits is 4800, while the sum is 31.

The spelling of 10204112561521 in words is "ten trillion, two hundred four billion, one hundred twelve million, five hundred sixty-one thousand, five hundred twenty-one".