33043021013 has 4 divisors (see below), whose sum is σ = 33057702528. Its totient is φ = 33028339500.

The previous prime is 33043021003. The next prime is 33043021069. The reversal of 33043021013 is 31012034033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33043021013 - 2⁶ = 33043020949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33043021003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7337381 + ... + 7341882.

It is an arithmetic number, because the mean of its divisors is an integer number (8264425632).

Almost surely, 2^33043021013 is an apocalyptic number.

It is an amenable number.

33043021013 is a deficient number, since it is larger than the sum of its proper divisors (14681515).

33043021013 is a wasteful number, since it uses less digits than its factorization.

33043021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14681514.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33043021013 its reverse (31012034033), we get a palindrome (64055055046).

The spelling of 33043021013 in words is "thirty-three billion, forty-three million, twenty-one thousand, thirteen".