33121111332 has 24 divisors (see below), whose sum is σ = 78079323616. Its totient is φ = 10926551808.

The previous prime is 33121111319. The next prime is 33121111343. The reversal of 33121111332 is 23311112133.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 33121111299 and 33121111308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14226118 + ... + 14228445.

Almost surely, 2^33121111332 is an apocalyptic number.

It is an amenable number.

33121111332 is an abundant number, since it is smaller than the sum of its proper divisors (44958212284).

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

33121111332 is a wasteful number, since it uses less digits than its factorization.

33121111332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28454667 (or 28454665 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

Adding to 33121111332 its reverse (23311112133), we get a palindrome (56432223465).

It can be divided in two parts, 33121 and 111332, that added together give a triangular number (144453 = T₅₃₇).

The spelling of 33121111332 in words is "thirty-three billion, one hundred twenty-one million, one hundred eleven thousand, three hundred thirty-two".