33213423133 has 16 divisors (see below), whose sum is σ = 36926637696. Its totient is φ = 29616159040.

The previous prime is 33213423101. The next prime is 33213423161. The reversal of 33213423133 is 33132431233.

It is a cyclic number.

It is not a de Polignac number, because 33213423133 - 2⁵ = 33213423101 is a prime.

It is a super-2 number, since 2×33213423133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33213423163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3314016 + ... + 3324022.

It is an arithmetic number, because the mean of its divisors is an integer number (2307914856).

Almost surely, 2^33213423133 is an apocalyptic number.

It is an amenable number.

33213423133 is a deficient number, since it is larger than the sum of its proper divisors (3713214563).

33213423133 is a wasteful number, since it uses less digits than its factorization.

33213423133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15764.

The product of its digits is 11664, while the sum is 28.

Adding to 33213423133 its reverse (33132431233), we get a palindrome (66345854366).

The spelling of 33213423133 in words is "thirty-three billion, two hundred thirteen million, four hundred twenty-three thousand, one hundred thirty-three".