33131322321 has 16 divisors (see below), whose sum is σ = 46778472000. Its totient is φ = 20786129408.

The previous prime is 33131322299. The next prime is 33131322373. The reversal of 33131322321 is 12322313133.

It is a cyclic number.

It is not a de Polignac number, because 33131322321 - 2¹⁰ = 33131321297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33131322291 and 33131322300.

It is not an unprimeable number, because it can be changed into a prime (33131322121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568885 + ... + 624413.

It is an arithmetic number, because the mean of its divisors is an integer number (2923654500).

Almost surely, 2^33131322321 is an apocalyptic number.

It is an amenable number.

33131322321 is a deficient number, since it is larger than the sum of its proper divisors (13647149679).

33131322321 is a wasteful number, since it uses less digits than its factorization.

33131322321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67248.

The product of its digits is 1944, while the sum is 24.

Adding to 33131322321 its reverse (12322313133), we get a palindrome (45453635454).

The spelling of 33131322321 in words is "thirty-three billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred twenty-one".