33330020331 has 4 divisors (see below), whose sum is σ = 44440027112. Its totient is φ = 22220013552.

The previous prime is 33330020323. The next prime is 33330020351. The reversal of 33330020331 is 13302003333.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 33330020331 - 2³ = 33330020323 is a prime.

It is a super-2 number, since 2×33330020331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33330020298 and 33330020307.

It is not an unprimeable number, because it can be changed into a prime (33330020351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555003386 + ... + 5555003391.

It is an arithmetic number, because the mean of its divisors is an integer number (11110006778).

Almost surely, 2^33330020331 is an apocalyptic number.

33330020331 is a deficient number, since it is larger than the sum of its proper divisors (11110006781).

33330020331 is a wasteful number, since it uses less digits than its factorization.

33330020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110006780.

The product of its (nonzero) digits is 1458, while the sum is 21.

Adding to 33330020331 its reverse (13302003333), we get a palindrome (46632023664).

The spelling of 33330020331 in words is "thirty-three billion, three hundred thirty million, twenty thousand, three hundred thirty-one".