121113202118 has 8 divisors (see below), whose sum is σ = 181673702112. Its totient is φ = 60555301416.

The previous prime is 121113202117. The next prime is 121113202123. The reversal of 121113202118 is 811202311121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121113202093 and 121113202102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121113202117) 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, 528830 + ... + 722417.

It is an arithmetic number, because the mean of its divisors is an integer number (22709212764).

Almost surely, 2^121113202118 is an apocalyptic number.

121113202118 is a deficient number, since it is larger than the sum of its proper divisors (60560499994).

121113202118 is a wasteful number, since it uses less digits than its factorization.

121113202118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299646.

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 121113202118 its reverse (811202311121), we get a palindrome (932315513239).

The spelling of 121113202118 in words is "one hundred twenty-one billion, one hundred thirteen million, two hundred two thousand, one hundred eighteen".