113855028521 has 32 divisors (see below), whose sum is σ = 127843430400. Its totient is φ = 100703554560.

The previous prime is 113855028517. The next prime is 113855028527. The reversal of 113855028521 is 125820558311.

It is a cyclic number.

It is not a de Polignac number, because 113855028521 - 2² = 113855028517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113855028527) 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 31 ways as a sum of consecutive naturals, for example, 50849720 + ... + 50851958.

It is an arithmetic number, because the mean of its divisors is an integer number (3995107200).

Almost surely, 2^113855028521 is an apocalyptic number.

It is an amenable number.

113855028521 is a deficient number, since it is larger than the sum of its proper divisors (13988401879).

113855028521 is a wasteful number, since it uses less digits than its factorization.

113855028521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849.

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 113855028521 in words is "one hundred thirteen billion, eight hundred fifty-five million, twenty-eight thousand, five hundred twenty-one".