20001021041 has 8 divisors (see below), whose sum is σ = 20040558720. Its totient is φ = 19961510832.

The previous prime is 20001021013. The next prime is 20001021097. The reversal of 20001021041 is 14012010002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001021041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001021241) 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, 2000531 + ... + 2010503.

It is an arithmetic number, because the mean of its divisors is an integer number (2505069840).

Almost surely, 2^20001021041 is an apocalyptic number.

It is an amenable number.

20001021041 is a deficient number, since it is larger than the sum of its proper divisors (39537679).

20001021041 is an equidigital number, since it uses as much as digits as its factorization.

20001021041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13735.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20001021041 its reverse (14012010002), we get a palindrome (34013031043).

The spelling of 20001021041 in words is "twenty billion, one million, twenty-one thousand, forty-one".