2001213313223 has 2 divisors, whose sum is σ = 2001213313224. Its totient is φ = 2001213313222.

The previous prime is 2001213313163. The next prime is 2001213313243. The reversal of 2001213313223 is 3223133121002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001213313223 - 2¹⁰ = 2001213312199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001213313243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000606656611 + 1000606656612.

It is an arithmetic number, because the mean of its divisors is an integer number (1000606656612).

Almost surely, 2^{2001213313223} is an apocalyptic number.

2001213313223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001213313223 is an equidigital number, since it uses as much as digits as its factorization.

2001213313223 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 23.

Adding to 2001213313223 its reverse (3223133121002), we get a palindrome (5224346434225).

The spelling of 2001213313223 in words is "two trillion, one billion, two hundred thirteen million, three hundred thirteen thousand, two hundred twenty-three".