33121112113 has 6 divisors (see below), whose sum is σ = 34956077154. Its totient is φ = 31377895344.

The previous prime is 33121112099. The next prime is 33121112117. The reversal of 33121112113 is 31121112133.

It can be written as a sum of positive squares in only one way, i.e., 25308673569 + 7812438544 = 159087^2 + 88388^2 .

It is not a de Polignac number, because 33121112113 - 2⁵ = 33121112081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33121112117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45873756 + ... + 45874477.

It is an arithmetic number, because the mean of its divisors is an integer number (5826012859).

Almost surely, 2^33121112113 is an apocalyptic number.

It is an amenable number.

33121112113 is a deficient number, since it is larger than the sum of its proper divisors (1834965041).

33121112113 is an equidigital number, since it uses as much as digits as its factorization.

33121112113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91748271 (or 91748252 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

Adding to 33121112113 its reverse (31121112133), we get a palindrome (64242224246).

The spelling of 33121112113 in words is "thirty-three billion, one hundred twenty-one million, one hundred twelve thousand, one hundred thirteen".