20213111230241 has 2 divisors, whose sum is σ = 20213111230242. Its totient is φ = 20213111230240.

The previous prime is 20213111230217. The next prime is 20213111230259. The reversal of 20213111230241 is 14203211131202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17233258479616 + 2979852750625 = 4151296^2 + 1726225^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213111230241 - 2¹⁰ = 20213111229217 is a prime.

It is not a weakly prime, because it can be changed into another prime (20213111230211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106555615120 + 10106555615121.

It is an arithmetic number, because the mean of its divisors is an integer number (10106555615121).

Almost surely, 2^{20213111230241} is an apocalyptic number.

It is an amenable number.

20213111230241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213111230241 is an equidigital number, since it uses as much as digits as its factorization.

20213111230241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20213111230241 its reverse (14203211131202), we get a palindrome (34416322361443).

The spelling of 20213111230241 in words is "twenty trillion, two hundred thirteen billion, one hundred eleven million, two hundred thirty thousand, two hundred forty-one".