20301223213 has 2 divisors, whose sum is σ = 20301223214. Its totient is φ = 20301223212.

The previous prime is 20301223199. The next prime is 20301223223. The reversal of 20301223213 is 31232210302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13362666409 + 6938556804 = 115597^2 + 83298^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301223213 - 2⁵ = 20301223181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20301223223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150611606 + 10150611607.

It is an arithmetic number, because the mean of its divisors is an integer number (10150611607).

Almost surely, 2^20301223213 is an apocalyptic number.

It is an amenable number.

20301223213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301223213 is an equidigital number, since it uses as much as digits as its factorization.

20301223213 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 19.

Adding to 20301223213 its reverse (31232210302), we get a palindrome (51533433515).

The spelling of 20301223213 in words is "twenty billion, three hundred one million, two hundred twenty-three thousand, two hundred thirteen".