11223030431521 has 8 divisors (see below), whose sum is σ = 11284098278400. Its totient is φ = 11161986632160.

The previous prime is 11223030431507. The next prime is 11223030431621. The reversal of 11223030431521 is 12513403032211.

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 11223030431521 - 2¹¹ = 11223030429473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11223030431521.

It is not an unprimeable number, because it can be changed into a prime (11223030431621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5075541 + ... + 6943138.

It is an arithmetic number, because the mean of its divisors is an integer number (1410512284800).

Almost surely, 2^{11223030431521} is an apocalyptic number.

It is an amenable number.

11223030431521 is a deficient number, since it is larger than the sum of its proper divisors (61067846879).

11223030431521 is a wasteful number, since it uses less digits than its factorization.

11223030431521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12023759.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 11223030431521 its reverse (12513403032211), we get a palindrome (23736433463732).

The spelling of 11223030431521 in words is "eleven trillion, two hundred twenty-three billion, thirty million, four hundred thirty-one thousand, five hundred twenty-one".