33121242133 has 12 divisors (see below), whose sum is σ = 38888880192. Its totient is φ = 28124307960.

The previous prime is 33121242131. The next prime is 33121242139. The reversal of 33121242133 is 33124212133.

It is not a de Polignac number, because 33121242133 - 2¹ = 33121242131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33121242098 and 33121242107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33121242131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3153373 + ... + 3163858.

It is an arithmetic number, because the mean of its divisors is an integer number (3240740016).

Almost surely, 2^33121242133 is an apocalyptic number.

It is an amenable number.

33121242133 is a deficient number, since it is larger than the sum of its proper divisors (5767638059).

33121242133 is a wasteful number, since it uses less digits than its factorization.

33121242133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317352 (or 6317345 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 33121242133 its reverse (33124212133), we get a palindrome (66245454266).

The spelling of 33121242133 in words is "thirty-three billion, one hundred twenty-one million, two hundred forty-two thousand, one hundred thirty-three".