20244340310421 has 8 divisors (see below), whose sum is σ = 26994572681440. Its totient is φ = 13495167406512.

The previous prime is 20244340310417. The next prime is 20244340310423. The reversal of 20244340310421 is 12401304344202.

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

It is not a de Polignac number, because 20244340310421 - 2² = 20244340310417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244340310423) 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, 264822190 + ... + 264898623.

It is an arithmetic number, because the mean of its divisors is an integer number (3374321585180).

Almost surely, 2^{20244340310421} is an apocalyptic number.

It is an amenable number.

20244340310421 is a deficient number, since it is larger than the sum of its proper divisors (6750232371019).

20244340310421 is a wasteful number, since it uses less digits than its factorization.

20244340310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529733555.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20244340310421 its reverse (12401304344202), we get a palindrome (32645644654623).

The spelling of 20244340310421 in words is "twenty trillion, two hundred forty-four billion, three hundred forty million, three hundred ten thousand, four hundred twenty-one".