20541241311 has 4 divisors (see below), whose sum is σ = 27388321752. Its totient is φ = 13694160872.

The previous prime is 20541241261. The next prime is 20541241319. The reversal of 20541241311 is 11314214502.

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 20541241311 - 2¹⁸ = 20540979167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20541241319) 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, 3423540216 + ... + 3423540221.

It is an arithmetic number, because the mean of its divisors is an integer number (6847080438).

Almost surely, 2^20541241311 is an apocalyptic number.

20541241311 is a deficient number, since it is larger than the sum of its proper divisors (6847080441).

20541241311 is an equidigital number, since it uses as much as digits as its factorization.

20541241311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6847080440.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 20541241311 its reverse (11314214502), we get a palindrome (31855455813).

The spelling of 20541241311 in words is "twenty billion, five hundred forty-one million, two hundred forty-one thousand, three hundred eleven".