33013313021 has 8 divisors (see below), whose sum is σ = 35590354464. Its totient is φ = 30441636720.

The previous prime is 33013312967. The next prime is 33013313041. The reversal of 33013313021 is 12031331033.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33013313021 - 2⁶ = 33013312957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33013312984 and 33013313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33013313041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328495 + ... + 1353116.

It is an arithmetic number, because the mean of its divisors is an integer number (4448794308).

Almost surely, 2^33013313021 is an apocalyptic number.

It is an amenable number.

33013313021 is a deficient number, since it is larger than the sum of its proper divisors (2577041443).

33013313021 is a wasteful number, since it uses less digits than its factorization.

33013313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682571.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 33013313021 its reverse (12031331033), we get a palindrome (45044644054).

The spelling of 33013313021 in words is "thirty-three billion, thirteen million, three hundred thirteen thousand, twenty-one".