20213213233 has 2 divisors, whose sum is σ = 20213213234. Its totient is φ = 20213213232.

The previous prime is 20213213227. The next prime is 20213213239. The reversal of 20213213233 is 33231231202.

It is a balanced prime because it is at equal distance from previous prime (20213213227) and next prime (20213213239).

It can be written as a sum of positive squares in only one way, i.e., 17427168144 + 2786045089 = 132012^2 + 52783^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213213233 - 2²⁹ = 19676342321 is a prime.

It is not a weakly prime, because it can be changed into another prime (20213213239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106606616 + 10106606617.

It is an arithmetic number, because the mean of its divisors is an integer number (10106606617).

Almost surely, 2^20213213233 is an apocalyptic number.

It is an amenable number.

20213213233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213213233 is an equidigital number, since it uses as much as digits as its factorization.

20213213233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20213213233 its reverse (33231231202), we get a palindrome (53444444435).

The spelling of 20213213233 in words is "twenty billion, two hundred thirteen million, two hundred thirteen thousand, two hundred thirty-three".