33021131113 has 4 divisors (see below), whose sum is σ = 33324077380. Its totient is φ = 32718184848.

The previous prime is 33021131107. The next prime is 33021131123. The reversal of 33021131113 is 31113112033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31113112033 = 2161 ⋅14397553.

It can be written as a sum of positive squares in 2 ways, for example, as 21389940009 + 11631191104 = 146253^2 + 107848^2 .

It is a cyclic number.

It is not a de Polignac number, because 33021131113 - 2¹⁷ = 33021000041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33021131123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151472970 + ... + 151473187.

It is an arithmetic number, because the mean of its divisors is an integer number (8331019345).

Almost surely, 2^33021131113 is an apocalyptic number.

It is an amenable number.

33021131113 is a deficient number, since it is larger than the sum of its proper divisors (302946267).

33021131113 is a wasteful number, since it uses less digits than its factorization.

33021131113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302946266.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 33021131113 its reverse (31113112033), we get a palindrome (64134243146).

The spelling of 33021131113 in words is "thirty-three billion, twenty-one million, one hundred thirty-one thousand, one hundred thirteen".