1113521241 has 32 divisors (see below), whose sum is σ = 1774632960. Its totient is φ = 607235904.

The previous prime is 1113521221. The next prime is 1113521257. The reversal of 1113521241 is 1421253111.

It is not a de Polignac number, because 1113521241 - 2⁶ = 1113521177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1113521221) 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, 228951 + ... + 233763.

It is an arithmetic number, because the mean of its divisors is an integer number (55457280).

Almost surely, 2^1113521241 is an apocalyptic number.

It is an amenable number.

1113521241 is a deficient number, since it is larger than the sum of its proper divisors (661111719).

1113521241 is a wasteful number, since it uses less digits than its factorization.

1113521241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325.

The product of its digits is 240, while the sum is 21.

The square root of 1113521241 is about 33369.4656984495. The cubic root of 1113521241 is about 1036.4925112244.

Adding to 1113521241 its reverse (1421253111), we get a palindrome (2534774352).

The spelling of 1113521241 in words is "one billion, one hundred thirteen million, five hundred twenty-one thousand, two hundred forty-one".