20441312321 has 8 divisors (see below), whose sum is σ = 20725234464. Its totient is φ = 20157495840.

The previous prime is 20441312299. The next prime is 20441312327. The reversal of 20441312321 is 12321314402.

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

It is not a de Polignac number, because 20441312321 - 2⁶ = 20441312257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20441312327) 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, 413666 + ... + 460436.

It is an arithmetic number, because the mean of its divisors is an integer number (2590654308).

Almost surely, 2^20441312321 is an apocalyptic number.

It is an amenable number.

20441312321 is a deficient number, since it is larger than the sum of its proper divisors (283922143).

20441312321 is an equidigital number, since it uses as much as digits as its factorization.

20441312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52831.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20441312321 its reverse (12321314402), we get a palindrome (32762626723).

The spelling of 20441312321 in words is "twenty billion, four hundred forty-one million, three hundred twelve thousand, three hundred twenty-one".