11132421 has 8 divisors (see below), whose sum is σ = 14975040. Its totient is φ = 7355712.

The previous prime is 11132419. The next prime is 11132447. The reversal of 11132421 is 12423111.

11132421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11132421 - 2¹ = 11132419 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11132421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132221) 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, 16081 + ... + 16758.

It is an arithmetic number, because the mean of its divisors is an integer number (1871880).

Almost surely, 2^11132421 is an apocalyptic number.

It is an amenable number.

11132421 is a deficient number, since it is larger than the sum of its proper divisors (3842619).

11132421 is a wasteful number, since it uses less digits than its factorization.

11132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32955.

The product of its digits is 48, while the sum is 15.

The square root of 11132421 is about 3336.5282855088. The cubic root of 11132421 is about 223.2868810098.

Adding to 11132421 its reverse (12423111), we get a palindrome (23555532).

The spelling of 11132421 in words is "eleven million, one hundred thirty-two thousand, four hundred twenty-one".