20201421041 has 4 divisors (see below), whose sum is σ = 20313031284. Its totient is φ = 20089810800.

The previous prime is 20201421029. The next prime is 20201421059. The reversal of 20201421041 is 14012410202.

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 4193857600 + 16007563441 = 64760^2 + 126521^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201421041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201421001) 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, 55804850 + ... + 55805211.

It is an arithmetic number, because the mean of its divisors is an integer number (5078257821).

Almost surely, 2^20201421041 is an apocalyptic number.

It is an amenable number.

20201421041 is a deficient number, since it is larger than the sum of its proper divisors (111610243).

20201421041 is a wasteful number, since it uses less digits than its factorization.

20201421041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111610242.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20201421041 its reverse (14012410202), we get a palindrome (34213831243).

The spelling of 20201421041 in words is "twenty billion, two hundred one million, four hundred twenty-one thousand, forty-one".