33423311312321 has 6 divisors (see below), whose sum is σ = 38880178465410. Its totient is φ = 28648552553376.

The previous prime is 33423311312299. The next prime is 33423311312329. The reversal of 33423311312321 is 12321311332433.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28987843649296 + 4435467663025 = 5384036^2 + 2106055^2 .

It is not a de Polignac number, because 33423311312321 - 2¹⁸ = 33423311050177 is a prime.

It is a super-2 number, since 2×33423311312321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33423311312329) 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 in 5 ways as a sum of consecutive naturals, for example, 341054197016 + ... + 341054197113.

It is an arithmetic number, because the mean of its divisors is an integer number (6480029744235).

Almost surely, 2^{33423311312321} is an apocalyptic number.

It is an amenable number.

33423311312321 is a deficient number, since it is larger than the sum of its proper divisors (5456867153089).

33423311312321 is an equidigital number, since it uses as much as digits as its factorization.

33423311312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682108394143 (or 682108394136 counting only the distinct ones).

The product of its digits is 23328, while the sum is 32.

Adding to 33423311312321 its reverse (12321311332433), we get a palindrome (45744622644754).

The spelling of 33423311312321 in words is "thirty-three trillion, four hundred twenty-three billion, three hundred eleven million, three hundred twelve thousand, three hundred twenty-one".