33023013021 has 24 divisors (see below), whose sum is σ = 48932380640. Its totient is φ = 21449092896.

The previous prime is 33023013019. The next prime is 33023013059. The reversal of 33023013021 is 12031032033.

33023013021 is a `hidden beast` number, since 330 + 2 + 30 + 1 + 302 + 1 = 666.

It is not a de Polignac number, because 33023013021 - 2¹ = 33023013019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33023012985 and 33023013003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33023013721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46170 + ... + 261108.

Almost surely, 2^33023013021 is an apocalyptic number.

It is an amenable number.

33023013021 is a deficient number, since it is larger than the sum of its proper divisors (15909367619).

33023013021 is a wasteful number, since it uses less digits than its factorization.

33023013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215385 (or 215382 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 33023013021 its reverse (12031032033), we get a palindrome (45054045054).

The spelling of 33023013021 in words is "thirty-three billion, twenty-three million, thirteen thousand, twenty-one".