2001213203323 has 2 divisors, whose sum is σ = 2001213203324. Its totient is φ = 2001213203322.

The previous prime is 2001213203299. The next prime is 2001213203333. The reversal of 2001213203323 is 3233023121002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001213203323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001213203294 and 2001213203303.

It is not a weakly prime, because it can be changed into another prime (2001213203333) 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, 1000606601661 + 1000606601662.

It is an arithmetic number, because the mean of its divisors is an integer number (1000606601662).

Almost surely, 2^{2001213203323} is an apocalyptic number.

2001213203323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001213203323 is an equidigital number, since it uses as much as digits as its factorization.

2001213203323 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 2001213203323 its reverse (3233023121002), we get a palindrome (5234236324325).

The spelling of 2001213203323 in words is "two trillion, one billion, two hundred thirteen million, two hundred three thousand, three hundred twenty-three".