20420310241241 has 4 divisors (see below), whose sum is σ = 21621504961332. Its totient is φ = 19219115521152.

The previous prime is 20420310241237. The next prime is 20420310241301. The reversal of 20420310241241 is 14214201302402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18766267320025 + 1654042921216 = 4332005^2 + 1286096^2 .

It is a cyclic number.

It is not a de Polignac number, because 20420310241241 - 2² = 20420310241237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20420310241241.

It is not an unprimeable number, because it can be changed into a prime (20420310241211) 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, 600597360020 + ... + 600597360053.

It is an arithmetic number, because the mean of its divisors is an integer number (5405376240333).

Almost surely, 2^{20420310241241} is an apocalyptic number.

It is an amenable number.

20420310241241 is a deficient number, since it is larger than the sum of its proper divisors (1201194720091).

20420310241241 is a wasteful number, since it uses less digits than its factorization.

20420310241241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201194720090.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 20420310241241 its reverse (14214201302402), we get a palindrome (34634511543643).

The spelling of 20420310241241 in words is "twenty trillion, four hundred twenty billion, three hundred ten million, two hundred forty-one thousand, two hundred forty-one".