1002003212213 has 4 divisors (see below), whose sum is σ = 1002813240300. Its totient is φ = 1001193184128.

The previous prime is 1002003212167. The next prime is 1002003212257. The reversal of 1002003212213 is 3122123002001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 450855845764 + 551147366449 = 671458^2 + 742393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002003212213 - 2⁶ = 1002003212149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002003212191 and 1002003212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002003212713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405012188 + ... + 405014661.

It is an arithmetic number, because the mean of its divisors is an integer number (250703310075).

Almost surely, 2^{1002003212213} is an apocalyptic number.

It is an amenable number.

1002003212213 is a deficient number, since it is larger than the sum of its proper divisors (810028087).

1002003212213 is an equidigital number, since it uses as much as digits as its factorization.

1002003212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810028086.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1002003212213 its reverse (3122123002001), we get a palindrome (4124126214214).

The spelling of 1002003212213 in words is "one trillion, two billion, three million, two hundred twelve thousand, two hundred thirteen".