20241321 has 4 divisors (see below), whose sum is σ = 26988432. Its totient is φ = 13494212.

The previous prime is 20241313. The next prime is 20241329. The reversal of 20241321 is 12314202.

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.

It is an interprime number because it is at equal distance from previous prime (20241313) and next prime (20241329).

It is a cyclic number.

It is not a de Polignac number, because 20241321 - 2³ = 20241313 is a prime.

It is a super-2 number, since 2×20241321² = 819422151650082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20241321.

It is not an unprimeable number, because it can be changed into a prime (20241329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3373551 + ... + 3373556.

It is an arithmetic number, because the mean of its divisors is an integer number (6747108).

Almost surely, 2^20241321 is an apocalyptic number.

It is an amenable number.

20241321 is a deficient number, since it is larger than the sum of its proper divisors (6747111).

20241321 is an equidigital number, since it uses as much as digits as its factorization.

20241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747110.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20241321 is about 4499.0355633180. The cubic root of 20241321 is about 272.5291431390.

Adding to 20241321 its reverse (12314202), we get a palindrome (32555523).

The spelling of 20241321 in words is "twenty million, two hundred forty-one thousand, three hundred twenty-one".