33320020231 has 16 divisors (see below), whose sum is σ = 34350544800. Its totient is φ = 32305972608.

The previous prime is 33320020207. The next prime is 33320020271. The reversal of 33320020231 is 13202002333.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 33320020231 - 2⁵ = 33320020199 is a prime.

It is a super-2 number, since 2×33320020231² (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 = 33320020199 and 33320020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33320020271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2239840 + ... + 2254666.

It is an arithmetic number, because the mean of its divisors is an integer number (2146909050).

Almost surely, 2^33320020231 is an apocalyptic number.

33320020231 is a deficient number, since it is larger than the sum of its proper divisors (1030524569).

33320020231 is a wasteful number, since it uses less digits than its factorization.

33320020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15378.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 33320020231 its reverse (13202002333), we get a palindrome (46522022564).

The spelling of 33320020231 in words is "thirty-three billion, three hundred twenty million, twenty thousand, two hundred thirty-one".