11412355521 has 8 divisors (see below), whose sum is σ = 17390256064. Its totient is φ = 6521346000.

The previous prime is 11412355489. The next prime is 11412355543. The reversal of 11412355521 is 12555321411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11412355521 - 2⁵ = 11412355489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11412355571) 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, 271722730 + ... + 271722771.

It is an arithmetic number, because the mean of its divisors is an integer number (2173782008).

Almost surely, 2^11412355521 is an apocalyptic number.

It is an amenable number.

11412355521 is a deficient number, since it is larger than the sum of its proper divisors (5977900543).

11412355521 is an equidigital number, since it uses as much as digits as its factorization.

11412355521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543445511.

The product of its digits is 6000, while the sum is 30.

Adding to 11412355521 its reverse (12555321411), we get a palindrome (23967676932).

The spelling of 11412355521 in words is "eleven billion, four hundred twelve million, three hundred fifty-five thousand, five hundred twenty-one".