2021042041043 has 16 divisors (see below), whose sum is σ = 2031832941600. Its totient is φ = 2010286377216.

The previous prime is 2021042041037. The next prime is 2021042041063. The reversal of 2021042041043 is 3401402401202.

It is a cyclic number.

It is not a de Polignac number, because 2021042041043 - 2⁴⁰ = 921530413267 is a prime.

It is a super-2 number, since 2×2021042041043² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021042041063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257355305 + ... + 257363157.

It is an arithmetic number, because the mean of its divisors is an integer number (126989558850).

Almost surely, 2^{2021042041043} is an apocalyptic number.

2021042041043 is a deficient number, since it is larger than the sum of its proper divisors (10790900557).

2021042041043 is an equidigital number, since it uses as much as digits as its factorization.

2021042041043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9926.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2021042041043 its reverse (3401402401202), we get a palindrome (5422444442245).

The spelling of 2021042041043 in words is "two trillion, twenty-one billion, forty-two million, forty-one thousand, forty-three".