11432121 has 4 divisors (see below), whose sum is σ = 15242832. Its totient is φ = 7621412.

The previous prime is 11432093. The next prime is 11432189. The reversal of 11432121 is 12123411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12123411 = 3 ⋅4041137.

It is a cyclic number.

It is not a de Polignac number, because 11432121 - 2⁷ = 11431993 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 11432121.

It is not an unprimeable number, because it can be changed into a prime (11432021) 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, 1905351 + ... + 1905356.

It is an arithmetic number, because the mean of its divisors is an integer number (3810708).

Almost surely, 2^11432121 is an apocalyptic number.

It is an amenable number.

11432121 is a deficient number, since it is larger than the sum of its proper divisors (3810711).

11432121 is an equidigital number, since it uses as much as digits as its factorization.

11432121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810710.

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

The square root of 11432121 is about 3381.1419668508. The cubic root of 11432121 is about 225.2728935758.

Adding to 11432121 its reverse (12123411), we get a palindrome (23555532).

The spelling of 11432121 in words is "eleven million, four hundred thirty-two thousand, one hundred twenty-one".