11321420 has 24 divisors (see below), whose sum is σ = 25936848. Its totient is φ = 4116800.

The previous prime is 11321399. The next prime is 11321437. The reversal of 11321420 is 2412311.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11321395 and 11321404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25511 + ... + 25950.

It is an arithmetic number, because the mean of its divisors is an integer number (1080702).

Almost surely, 2^11321420 is an apocalyptic number.

11321420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321420 is an abundant number, since it is smaller than the sum of its proper divisors (14615428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11321420 is a wasteful number, since it uses less digits than its factorization.

11321420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51481 (or 51479 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 11321420 is about 3364.7317872306. The cubic root of 11321420 is about 224.5434032645.

Adding to 11321420 its reverse (2412311), we get a palindrome (13733731).

It can be divided in two parts, 1132 and 1420, that added together give a palindrome (2552).

The spelling of 11321420 in words is "eleven million, three hundred twenty-one thousand, four hundred twenty".