33121102312 has 32 divisors (see below), whose sum is σ = 65763721800. Its totient is φ = 15584364544.

The previous prime is 33121102307. The next prime is 33121102319. The reversal of 33121102312 is 21320112133.

It can be written as a sum of positive squares in 4 ways, for example, as 18483490116 + 14637612196 = 135954^2 + 120986^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 33121102312.

It is not an unprimeable number, because it can be changed into a prime (33121102319) 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, 1732518 + ... + 1751530.

Almost surely, 2^33121102312 is an apocalyptic number.

It is an amenable number.

33121102312 is a deficient number, since it is larger than the sum of its proper divisors (32642619488).

33121102312 is a wasteful number, since it uses less digits than its factorization.

33121102312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31845 (or 31841 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 33121102312 its reverse (21320112133), we get a palindrome (54441214445).

The spelling of 33121102312 in words is "thirty-three billion, one hundred twenty-one million, one hundred two thousand, three hundred twelve".