20234321 has 4 divisors (see below), whose sum is σ = 20478192. Its totient is φ = 19990452.

The previous prime is 20234311. The next prime is 20234329. The reversal of 20234321 is 12343202.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20234321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20234321.

It is not an unprimeable number, because it can be changed into a prime (20234329) 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, 121811 + ... + 121976.

It is an arithmetic number, because the mean of its divisors is an integer number (5119548).

Almost surely, 2^20234321 is an apocalyptic number.

It is an amenable number.

20234321 is a deficient number, since it is larger than the sum of its proper divisors (243871).

20234321 is an equidigital number, since it uses as much as digits as its factorization.

20234321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243870.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20234321 is about 4498.2575515415. The cubic root of 20234321 is about 272.4977235172.

Adding to 20234321 its reverse (12343202), we get a palindrome (32577523).

The spelling of 20234321 in words is "twenty million, two hundred thirty-four thousand, three hundred twenty-one".