113355135521 has 4 divisors (see below), whose sum is σ = 113365585200. Its totient is φ = 113344685844.

The previous prime is 113355135511. The next prime is 113355135529. The reversal of 113355135521 is 125531553311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113355135521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113355135529) 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 3 ways as a sum of consecutive naturals, for example, 5208551 + ... + 5230268.

It is an arithmetic number, because the mean of its divisors is an integer number (28341396300).

Almost surely, 2^113355135521 is an apocalyptic number.

It is an amenable number.

113355135521 is a deficient number, since it is larger than the sum of its proper divisors (10449679).

113355135521 is a wasteful number, since it uses less digits than its factorization.

113355135521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449678.

The product of its digits is 33750, while the sum is 35.

Adding to 113355135521 its reverse (125531553311), we get a palindrome (238886688832).

The spelling of 113355135521 in words is "one hundred thirteen billion, three hundred fifty-five million, one hundred thirty-five thousand, five hundred twenty-one".