121344030202018 has 16 divisors (see below), whose sum is σ = 196017466926456. Its totient is φ = 56004883482240.

The previous prime is 121344030201943. The next prime is 121344030202019. The reversal of 121344030202018 is 810202030443121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118961492860809 + 2382537341209 = 10906947^2 + 1543547^2 .

It is not an unprimeable number, because it can be changed into a prime (121344030202019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42162558 + ... + 44948518.

Almost surely, 2^{121344030202018} is an apocalyptic number.

121344030202018 is a deficient number, since it is larger than the sum of its proper divisors (74673436724438).

121344030202018 is a wasteful number, since it uses less digits than its factorization.

121344030202018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461189.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 121344030202018 its reverse (810202030443121), we get a palindrome (931546060645139).

The spelling of 121344030202018 in words is "one hundred twenty-one trillion, three hundred forty-four billion, thirty million, two hundred two thousand, eighteen".