111304103521 has 8 divisors (see below), whose sum is σ = 120055928384. Its totient is φ = 102579417360.

The previous prime is 111304103507. The next prime is 111304103539. The reversal of 111304103521 is 125301403111.

It is a happy number.

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 111304103521 - 2²³ = 111295714913 is a prime.

It is a super-2 number, since 2×111304103521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111304103492 and 111304103501.

It is not an unprimeable number, because it can be changed into a prime (111304103821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6776151 + ... + 6792556.

It is an arithmetic number, because the mean of its divisors is an integer number (15006991048).

Almost surely, 2^111304103521 is an apocalyptic number.

It is an amenable number.

111304103521 is a deficient number, since it is larger than the sum of its proper divisors (8751824863).

111304103521 is a wasteful number, since it uses less digits than its factorization.

111304103521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13569351.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 111304103521 its reverse (125301403111), we get a palindrome (236605506632).

The spelling of 111304103521 in words is "one hundred eleven billion, three hundred four million, one hundred three thousand, five hundred twenty-one".