321113369 has 2 divisors, whose sum is σ = 321113370. Its totient is φ = 321113368.

The previous prime is 321113311. The next prime is 321113371. The reversal of 321113369 is 963311123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167055625 + 154057744 = 12925^2 + 12412^2 .

It is a cyclic number.

It is not a de Polignac number, because 321113369 - 2⁸ = 321113113 is a prime.

It is a super-3 number, since 3×321113369³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 321113371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321113669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160556684 + 160556685.

It is an arithmetic number, because the mean of its divisors is an integer number (160556685).

Almost surely, 2^321113369 is an apocalyptic number.

It is an amenable number.

321113369 is a deficient number, since it is larger than the sum of its proper divisors (1).

321113369 is an equidigital number, since it uses as much as digits as its factorization.

321113369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 29.

The square root of 321113369 is about 17919.6364081418. The cubic root of 321113369 is about 684.7827247033.

The spelling of 321113369 in words is "three hundred twenty-one million, one hundred thirteen thousand, three hundred sixty-nine".