2021042504011 has 4 divisors (see below), whose sum is σ = 2021077371024. Its totient is φ = 2021007637000.

The previous prime is 2021042503967. The next prime is 2021042504017. The reversal of 2021042504011 is 1104052401202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021042504011 - 2¹³ = 2021042495819 is a prime.

It is a super-2 number, since 2×2021042504011² (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 (2021042504017) 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, 17346415 + ... + 17462536.

It is an arithmetic number, because the mean of its divisors is an integer number (505269342756).

Almost surely, 2^{2021042504011} is an apocalyptic number.

2021042504011 is a deficient number, since it is larger than the sum of its proper divisors (34867013).

2021042504011 is an equidigital number, since it uses as much as digits as its factorization.

2021042504011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34867012.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 2021042504011 its reverse (1104052401202), we get a palindrome (3125094905213).

The spelling of 2021042504011 in words is "two trillion, twenty-one billion, forty-two million, five hundred four thousand, eleven".