1000113203321 has 2 divisors, whose sum is σ = 1000113203322. Its totient is φ = 1000113203320.

The previous prime is 1000113203303. The next prime is 1000113203329. The reversal of 1000113203321 is 1233023110001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 523372668025 + 476740535296 = 723445^2 + 690464^2 .

It is an emirp because it is prime and its reverse (1233023110001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000113203321 - 2²² = 1000109009017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000113203321.

It is not a weakly prime, because it can be changed into another prime (1000113203329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500056601660 + 500056601661.

It is an arithmetic number, because the mean of its divisors is an integer number (500056601661).

Almost surely, 2^{1000113203321} is an apocalyptic number.

It is an amenable number.

1000113203321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000113203321 is an equidigital number, since it uses as much as digits as its factorization.

1000113203321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1000113203321 its reverse (1233023110001), we get a palindrome (2233136313322).

The spelling of 1000113203321 in words is "one trillion, one hundred thirteen million, two hundred three thousand, three hundred twenty-one".