10020041021 has 4 divisors (see below), whose sum is σ = 10046203392. Its totient is φ = 9993878652.

The previous prime is 10020040951. The next prime is 10020041081. The reversal of 10020041021 is 12014002001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12014002001 = 44053 ⋅272717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020041021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020040993 and 10020041011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020041081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13080611 + ... + 13081376.

It is an arithmetic number, because the mean of its divisors is an integer number (2511550848).

Almost surely, 2^10020041021 is an apocalyptic number.

It is an amenable number.

10020041021 is a deficient number, since it is larger than the sum of its proper divisors (26162371).

10020041021 is an equidigital number, since it uses as much as digits as its factorization.

10020041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26162370.

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

Adding to 10020041021 its reverse (12014002001), we get a palindrome (22034043022).

The spelling of 10020041021 in words is "ten billion, twenty million, forty-one thousand, twenty-one".