11121413 has 8 divisors (see below), whose sum is σ = 11621880. Its totient is φ = 10628800.

The previous prime is 11121389. The next prime is 11121421. The reversal of 11121413 is 31412111.

It can be written as a sum of positive squares in 4 ways, for example, as 1399489 + 9721924 = 1183^2 + 3118^2 .

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 11121413 - 2²⁰ = 10072837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121433) 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, 1031 + ... + 4827.

It is an arithmetic number, because the mean of its divisors is an integer number (1452735).

Almost surely, 2^11121413 is an apocalyptic number.

It is an amenable number.

11121413 is a deficient number, since it is larger than the sum of its proper divisors (500467).

11121413 is a wasteful number, since it uses less digits than its factorization.

11121413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927.

The product of its digits is 24, while the sum is 14.

The square root of 11121413 is about 3334.8782586475. The cubic root of 11121413 is about 223.2132596299.

Adding to 11121413 its reverse (31412111), we get a palindrome (42533524).

The spelling of 11121413 in words is "eleven million, one hundred twenty-one thousand, four hundred thirteen".