20233213213 has 2 divisors, whose sum is σ = 20233213214. Its totient is φ = 20233213212.

The previous prime is 20233213201. The next prime is 20233213223. The reversal of 20233213213 is 31231233202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11286512644 + 8946700569 = 106238^2 + 94587^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233213213 - 2¹³ = 20233205021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20233213223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116606606 + 10116606607.

It is an arithmetic number, because the mean of its divisors is an integer number (10116606607).

Almost surely, 2^20233213213 is an apocalyptic number.

It is an amenable number.

20233213213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233213213 is an equidigital number, since it uses as much as digits as its factorization.

20233213213 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 20233213213 its reverse (31231233202), we get a palindrome (51464446415).

The spelling of 20233213213 in words is "twenty billion, two hundred thirty-three million, two hundred thirteen thousand, two hundred thirteen".