20213211011233 has 2 divisors, whose sum is σ = 20213211011234. Its totient is φ = 20213211011232.

The previous prime is 20213211011171. The next prime is 20213211011291. The reversal of 20213211011233 is 33211011231202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18285689735329 + 1927521275904 = 4276177^2 + 1388352^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213211011233 - 2²¹ = 20213208914081 is a prime.

It is not a weakly prime, because it can be changed into another prime (20213211011333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106605505616 + 10106605505617.

It is an arithmetic number, because the mean of its divisors is an integer number (10106605505617).

Almost surely, 2^{20213211011233} is an apocalyptic number.

It is an amenable number.

20213211011233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213211011233 is an equidigital number, since it uses as much as digits as its factorization.

20213211011233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20213211011233 its reverse (33211011231202), we get a palindrome (53424222242435).

The spelling of 20213211011233 in words is "twenty trillion, two hundred thirteen billion, two hundred eleven million, eleven thousand, two hundred thirty-three".