33113321000 has 64 divisors (see below), whose sum is σ = 77761578960. Its totient is φ = 13198080000.

The previous prime is 33113320991. The next prime is 33113321039. The reversal of 33113321000 is 12331133.

It can be written as a sum of positive squares in 8 ways, for example, as 54081316 + 33059239684 = 7354^2 + 181822^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 33113321000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222080 + ... + 339920.

Almost surely, 2^33113321000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33113321000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38880789480).

33113321000 is an abundant number, since it is smaller than the sum of its proper divisors (44648257960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33113321000 is a wasteful number, since it uses less digits than its factorization.

33113321000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118143 (or 118129 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 33113321000 its reverse (12331133), we get a palindrome (33125652133).

The spelling of 33113321000 in words is "thirty-three billion, one hundred thirteen million, three hundred twenty-one thousand".