11421351 has 8 divisors (see below), whose sum is σ = 16920560. Its totient is φ = 7614216.

The previous prime is 11421323. The next prime is 11421353. The reversal of 11421351 is 15312411.

It is not a de Polignac number, because 11421351 - 2¹³ = 11413159 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 (11421353) 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 7 ways as a sum of consecutive naturals, for example, 211480 + ... + 211533.

It is an arithmetic number, because the mean of its divisors is an integer number (2115070).

Almost surely, 2^11421351 is an apocalyptic number.

11421351 is a deficient number, since it is larger than the sum of its proper divisors (5499209).

11421351 is an equidigital number, since it uses as much as digits as its factorization.

11421351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423022 (or 423016 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11421351 is about 3379.5489343994. The cubic root of 11421351 is about 225.2021294731.

Adding to 11421351 its reverse (15312411), we get a palindrome (26733762).

The spelling of 11421351 in words is "eleven million, four hundred twenty-one thousand, three hundred fifty-one".