20133220234291 has 2 divisors, whose sum is σ = 20133220234292. Its totient is φ = 20133220234290.

The previous prime is 20133220234271. The next prime is 20133220234343. The reversal of 20133220234291 is 19243202233102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20133220234291 - 2¹³ = 20133220226099 is a prime.

It is not a weakly prime, because it can be changed into another prime (20133220234271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066610117145 + 10066610117146.

It is an arithmetic number, because the mean of its divisors is an integer number (10066610117146).

Almost surely, 2^{20133220234291} is an apocalyptic number.

20133220234291 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133220234291 is an equidigital number, since it uses as much as digits as its factorization.

20133220234291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 20133220234291 its reverse (19243202233102), we get a palindrome (39376422467393).

The spelling of 20133220234291 in words is "twenty trillion, one hundred thirty-three billion, two hundred twenty million, two hundred thirty-four thousand, two hundred ninety-one".