33130121333 has 4 divisors (see below), whose sum is σ = 34272539340. Its totient is φ = 31987703328.

The previous prime is 33130121293. The next prime is 33130121359. The reversal of 33130121333 is 33312103133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25658593489 + 7471527844 = 160183^2 + 86438^2 .

It is a cyclic number.

It is not a de Polignac number, because 33130121333 - 2³² = 28835154037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33130121299 and 33130121308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130021333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571208960 + ... + 571209017.

It is an arithmetic number, because the mean of its divisors is an integer number (8568134835).

Almost surely, 2^33130121333 is an apocalyptic number.

It is an amenable number.

33130121333 is a deficient number, since it is larger than the sum of its proper divisors (1142418007).

33130121333 is a wasteful number, since it uses less digits than its factorization.

33130121333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142418006.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 33130121333 its reverse (33312103133), we get a palindrome (66442224466).

The spelling of 33130121333 in words is "thirty-three billion, one hundred thirty million, one hundred twenty-one thousand, three hundred thirty-three".