1113124521 has 8 divisors (see below), whose sum is σ = 1571469984. Its totient is φ = 698431040.

The previous prime is 1113124501. The next prime is 1113124541. The reversal of 1113124521 is 1254213111.

It is an interprime number because it is at equal distance from previous prime (1113124501) and next prime (1113124541).

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 1113124521 - 2⁹ = 1113124009 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1113124501) 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, 10912935 + ... + 10913036.

It is an arithmetic number, because the mean of its divisors is an integer number (196433748).

Almost surely, 2^1113124521 is an apocalyptic number.

It is an amenable number.

1113124521 is a deficient number, since it is larger than the sum of its proper divisors (458345463).

1113124521 is a wasteful number, since it uses less digits than its factorization.

1113124521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21825991.

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

The square root of 1113124521 is about 33363.5208124083. The cubic root of 1113124521 is about 1036.3694044119.

Adding to 1113124521 its reverse (1254213111), we get a palindrome (2367337632).

The spelling of 1113124521 in words is "one billion, one hundred thirteen million, one hundred twenty-four thousand, five hundred twenty-one".