33021117393 has 16 divisors (see below), whose sum is σ = 50558649600. Its totient is φ = 18959492880.

The previous prime is 33021117391. The next prime is 33021117413. The reversal of 33021117393 is 39371112033.

It is not a de Polignac number, because 33021117393 - 2¹ = 33021117391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (33021117391) 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 15 ways as a sum of consecutive naturals, for example, 26332003 + ... + 26333256.

It is an arithmetic number, because the mean of its divisors is an integer number (3159915600).

Almost surely, 2^33021117393 is an apocalyptic number.

33021117393 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

33021117393 is a deficient number, since it is larger than the sum of its proper divisors (17537532207).

33021117393 is a wasteful number, since it uses less digits than its factorization.

33021117393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52665292.

The product of its (nonzero) digits is 10206, while the sum is 33.

The spelling of 33021117393 in words is "thirty-three billion, twenty-one million, one hundred seventeen thousand, three hundred ninety-three".