11124351521 has 8 divisors (see below), whose sum is σ = 11299196160. Its totient is φ = 10950113952.

The previous prime is 11124351503. The next prime is 11124351533. The reversal of 11124351521 is 12515342111.

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 11124351521 - 2¹⁸ = 11124089377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11124351551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114761 + ... + 188198.

It is an arithmetic number, because the mean of its divisors is an integer number (1412399520).

Almost surely, 2^11124351521 is an apocalyptic number.

It is an amenable number.

11124351521 is a deficient number, since it is larger than the sum of its proper divisors (174844639).

11124351521 is an equidigital number, since it uses as much as digits as its factorization.

11124351521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303535.

The product of its digits is 1200, while the sum is 26.

Adding to 11124351521 its reverse (12515342111), we get a palindrome (23639693632).

The spelling of 11124351521 in words is "eleven billion, one hundred twenty-four million, three hundred fifty-one thousand, five hundred twenty-one".