20133243211 has 2 divisors, whose sum is σ = 20133243212. Its totient is φ = 20133243210.

The previous prime is 20133243209. The next prime is 20133243227. The reversal of 20133243211 is 11234233102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20133243211 - 2¹ = 20133243209 is a prime.

Together with 20133243209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20133243311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066621605 + 10066621606.

It is an arithmetic number, because the mean of its divisors is an integer number (10066621606).

Almost surely, 2^20133243211 is an apocalyptic number.

20133243211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133243211 is an equidigital number, since it uses as much as digits as its factorization.

20133243211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20133243211 its reverse (11234233102), we get a palindrome (31367476313).

The spelling of 20133243211 in words is "twenty billion, one hundred thirty-three million, two hundred forty-three thousand, two hundred eleven".