121113206 has 8 divisors (see below), whose sum is σ = 182996280. Its totient is φ = 60114448.

The previous prime is 121113203. The next prime is 121113211. The reversal of 121113206 is 602311121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121113203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220736 + ... + 221283.

It is an arithmetic number, because the mean of its divisors is an integer number (22874535).

Almost surely, 2^121113206 is an apocalyptic number.

121113206 is a deficient number, since it is larger than the sum of its proper divisors (61883074).

121113206 is a wasteful number, since it uses less digits than its factorization.

121113206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442158.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 121113206 is about 11005.1445242668. The cubic root of 121113206 is about 494.7629460455.

Adding to 121113206 its reverse (602311121), we get a palindrome (723424327).

The spelling of 121113206 in words is "one hundred twenty-one million, one hundred thirteen thousand, two hundred six".