20242321 has 8 divisors (see below), whose sum is σ = 22169664. Its totient is φ = 18329520.

The previous prime is 20242307. The next prime is 20242331. The reversal of 20242321 is 12324202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20242321 - 2¹¹ = 20240273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20242295 and 20242304.

It is not an unprimeable number, because it can be changed into a prime (20242331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (2771208).

Almost surely, 2^20242321 is an apocalyptic number.

It is an amenable number.

20242321 is a deficient number, since it is larger than the sum of its proper divisors (1927343).

20242321 is a wasteful number, since it uses less digits than its factorization.

20242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7271.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20242321 is about 4499.1466968749. The cubic root of 20242321 is about 272.5336310651.

Adding to 20242321 its reverse (12324202), we get a palindrome (32566523).

The spelling of 20242321 in words is "twenty million, two hundred forty-two thousand, three hundred twenty-one".