11130421 has 4 divisors (see below), whose sum is σ = 11389312. Its totient is φ = 10871532.

The previous prime is 11130419. The next prime is 11130433. The reversal of 11130421 is 12403111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11130421 - 2¹ = 11130419 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 (11130221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129381 + ... + 129466.

It is an arithmetic number, because the mean of its divisors is an integer number (2847328).

Almost surely, 2^11130421 is an apocalyptic number.

It is an amenable number.

11130421 is a deficient number, since it is larger than the sum of its proper divisors (258891).

11130421 is an equidigital number, since it uses as much as digits as its factorization.

11130421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258890.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 11130421 is about 3336.2285593166. The cubic root of 11130421 is about 223.2735086413.

Adding to 11130421 its reverse (12403111), we get a palindrome (23533532).

The spelling of 11130421 in words is "eleven million, one hundred thirty thousand, four hundred twenty-one".