10020441000421 has 4 divisors (see below), whose sum is σ = 10020447365292. Its totient is φ = 10020434635552.

The previous prime is 10020441000397. The next prime is 10020441000467. The reversal of 10020441000421 is 12400014402001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3282709830625 + 6737731169796 = 1811825^2 + 2595714^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020441000421 - 2⁴³ = 1224347978213 is a prime.

It is a super-2 number, since 2×10020441000421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020442000421) 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, 1099521 + ... + 4609753.

It is an arithmetic number, because the mean of its divisors is an integer number (2505111841323).

Almost surely, 2^{10020441000421} is an apocalyptic number.

It is an amenable number.

10020441000421 is a deficient number, since it is larger than the sum of its proper divisors (6364871).

10020441000421 is an equidigital number, since it uses as much as digits as its factorization.

10020441000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364870.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10020441000421 its reverse (12400014402001), we get a palindrome (22420455402422).

The spelling of 10020441000421 in words is "ten trillion, twenty billion, four hundred forty-one million, four hundred twenty-one", and thus it is an aban number.