21341120 has 56 divisors (see below), whose sum is σ = 53821584. Its totient is φ = 8032256.

The previous prime is 21341093. The next prime is 21341141. The reversal of 21341120 is 2114312.

It is a junction number, because it is equal to n+sod(n) for n = 21341095 and 21341104.

It is a congruent number.

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, 3479 + ... + 7401.

Almost surely, 2^21341120 is an apocalyptic number.

21341120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21341120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26910792).

21341120 is an abundant number, since it is smaller than the sum of its proper divisors (32480464).

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

21341120 is a wasteful number, since it uses less digits than its factorization.

21341120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957 (or 3947 counting only the distinct ones).

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

The square root of 21341120 is about 4619.6450080066. The cubic root of 21341120 is about 277.3782492176.

Adding to 21341120 its reverse (2114312), we get a palindrome (23455432).

The spelling of 21341120 in words is "twenty-one million, three hundred forty-one thousand, one hundred twenty".