33121441040 has 40 divisors (see below), whose sum is σ = 77018617368. Its totient is φ = 13246638080.

The previous prime is 33121441033. The next prime is 33121441049. The reversal of 33121441040 is 4014412133.

It can be written as a sum of positive squares in 4 ways, for example, as 1875929344 + 31245511696 = 43312^2 + 176764^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 33121440997 and 33121441015.

It is not an unprimeable number, because it can be changed into a prime (33121441049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601880 + ... + 654600.

Almost surely, 2^33121441040 is an apocalyptic number.

It is an amenable number.

33121441040 is an abundant number, since it is smaller than the sum of its proper divisors (43897176328).

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

33121441040 is a wasteful number, since it uses less digits than its factorization.

33121441040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60587 (or 60581 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 33121441040 its reverse (4014412133), we get a palindrome (37135853173).

The spelling of 33121441040 in words is "thirty-three billion, one hundred twenty-one million, four hundred forty-one thousand, forty".