33012053321 has 4 divisors (see below), whose sum is σ = 35551442052. Its totient is φ = 30472664592.

The previous prime is 33012053303. The next prime is 33012053407. The reversal of 33012053321 is 12335021033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12335021033 = 14033 ⋅879001.

It can be written as a sum of positive squares in 2 ways, for example, as 1854508096 + 31157545225 = 43064^2 + 176515^2 .

It is a cyclic number.

It is not a de Polignac number, because 33012053321 - 2¹⁸ = 33011791177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33012043321) 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 3 ways as a sum of consecutive naturals, for example, 1269694346 + ... + 1269694371.

It is an arithmetic number, because the mean of its divisors is an integer number (8887860513).

Almost surely, 2^33012053321 is an apocalyptic number.

It is an amenable number.

33012053321 is a deficient number, since it is larger than the sum of its proper divisors (2539388731).

33012053321 is a wasteful number, since it uses less digits than its factorization.

33012053321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539388730.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 33012053321 its reverse (12335021033), we get a palindrome (45347074354).

The spelling of 33012053321 in words is "thirty-three billion, twelve million, fifty-three thousand, three hundred twenty-one".