111341521 has 8 divisors (see below), whose sum is σ = 112104000. Its totient is φ = 110582160.

The previous prime is 111341519. The next prime is 111341533. The reversal of 111341521 is 125143111.

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 111341521 - 2¹ = 111341519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111311521) 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, 160786 + ... + 161476.

It is an arithmetic number, because the mean of its divisors is an integer number (14013000).

Almost surely, 2^111341521 is an apocalyptic number.

It is an amenable number.

111341521 is a deficient number, since it is larger than the sum of its proper divisors (762479).

111341521 is an equidigital number, since it uses as much as digits as its factorization.

111341521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559.

The product of its digits is 120, while the sum is 19.

The square root of 111341521 is about 10551.8491744338. The cubic root of 111341521 is about 481.0819358951.

Adding to 111341521 its reverse (125143111), we get a palindrome (236484632).

The spelling of 111341521 in words is "one hundred eleven million, three hundred forty-one thousand, five hundred twenty-one".