33102040121 has 4 divisors (see below), whose sum is σ = 33996689892. Its totient is φ = 32207390352.

The previous prime is 33102040091. The next prime is 33102040123. The reversal of 33102040121 is 12104020133.

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 31171668025 + 1930372096 = 176555^2 + 43936^2 .

It is a cyclic number.

It is not a de Polignac number, because 33102040121 - 2⁶ = 33102040057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33102040121.

It is not an unprimeable number, because it can be changed into a prime (33102040123) 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, 447324830 + ... + 447324903.

It is an arithmetic number, because the mean of its divisors is an integer number (8499172473).

Almost surely, 2^33102040121 is an apocalyptic number.

It is an amenable number.

33102040121 is a deficient number, since it is larger than the sum of its proper divisors (894649771).

33102040121 is an equidigital number, since it uses as much as digits as its factorization.

33102040121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894649770.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 33102040121 its reverse (12104020133), we get a palindrome (45206060254).

The spelling of 33102040121 in words is "thirty-three billion, one hundred two million, forty thousand, one hundred twenty-one".