11413144021 has 16 divisors (see below), whose sum is σ = 12317184000. Its totient is φ = 10535784448.

The previous prime is 11413144013. The next prime is 11413144031. The reversal of 11413144021 is 12044131411.

It is a cyclic number.

It is not a de Polignac number, because 11413144021 - 2³ = 11413144013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11413143983 and 11413144001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11413144031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437676 + ... + 463018.

It is an arithmetic number, because the mean of its divisors is an integer number (769824000).

Almost surely, 2^11413144021 is an apocalyptic number.

It is an amenable number.

11413144021 is a deficient number, since it is larger than the sum of its proper divisors (904039979).

11413144021 is a wasteful number, since it uses less digits than its factorization.

11413144021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25868.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11413144021 its reverse (12044131411), we get a palindrome (23457275432).

The spelling of 11413144021 in words is "eleven billion, four hundred thirteen million, one hundred forty-four thousand, twenty-one".