20411121003011 has 4 divisors (see below), whose sum is σ = 20411156391024. Its totient is φ = 20411085615000.

The previous prime is 20411121003001. The next prime is 20411121003103. The reversal of 20411121003011 is 11030012111402.

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 20411121003011 - 2⁶ = 20411121002947 is a prime.

It is a super-2 number, since 2×20411121003011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20411121003001) 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, 16814255 + ... + 17987256.

It is an arithmetic number, because the mean of its divisors is an integer number (5102789097756).

Almost surely, 2^{20411121003011} is an apocalyptic number.

20411121003011 is a deficient number, since it is larger than the sum of its proper divisors (35388013).

20411121003011 is an equidigital number, since it uses as much as digits as its factorization.

20411121003011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35388012.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20411121003011 its reverse (11030012111402), we get a palindrome (31441133114413).

The spelling of 20411121003011 in words is "twenty trillion, four hundred eleven billion, one hundred twenty-one million, three thousand, eleven".