11421055 has 4 divisors (see below), whose sum is σ = 13705272. Its totient is φ = 9136840.

The previous prime is 11421037. The next prime is 11421061. The reversal of 11421055 is 55012411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11421055 - 2⁹ = 11420543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142101 + ... + 1142110.

It is an arithmetic number, because the mean of its divisors is an integer number (3426318).

Almost surely, 2^11421055 is an apocalyptic number.

11421055 is a deficient number, since it is larger than the sum of its proper divisors (2284217).

11421055 is an equidigital number, since it uses as much as digits as its factorization.

11421055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284216.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 11421055 is about 3379.5051412892. The cubic root of 11421055 is about 225.2001839821.

Adding to 11421055 its reverse (55012411), we get a palindrome (66433466).

It can be divided in two parts, 1142 and 1055, that added together give a cube (2197 = 13³).

The spelling of 11421055 in words is "eleven million, four hundred twenty-one thousand, fifty-five".