33121320032 has 24 divisors (see below), whose sum is σ = 65318722056. Its totient is φ = 16532438272.

The previous prime is 33121320017. The next prime is 33121320097. The reversal of 33121320032 is 23002312133.

It is a junction number, because it is equal to n+sod(n) for n = 33121319986 and 33121320013.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 862853 + ... + 900420.

It is an arithmetic number, because the mean of its divisors is an integer number (2721613419).

Almost surely, 2^33121320032 is an apocalyptic number.

33121320032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

33121320032 is a deficient number, since it is larger than the sum of its proper divisors (32197402024).

33121320032 is a wasteful number, since it uses less digits than its factorization.

33121320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763870 (or 1763862 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33121320032 its reverse (23002312133), we get a palindrome (56123632165).

The spelling of 33121320032 in words is "thirty-three billion, one hundred twenty-one million, three hundred twenty thousand, thirty-two".