121113208 has 8 divisors (see below), whose sum is σ = 227087280. Its totient is φ = 60556600.

The previous prime is 121113203. The next prime is 121113211. The reversal of 121113208 is 802311121.

It is a tau number, because it is divible by the number of its divisors (8).

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 polite number, since it can be written as a sum of consecutive naturals, namely, 7569568 + ... + 7569583.

It is an arithmetic number, because the mean of its divisors is an integer number (28385910).

Almost surely, 2^121113208 is an apocalyptic number.

It is an amenable number.

121113208 is a deficient number, since it is larger than the sum of its proper divisors (105974072).

121113208 is a wasteful number, since it uses less digits than its factorization.

121113208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15139157 (or 15139153 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 121113208 is about 11005.1446151334. The cubic root of 121113208 is about 494.7629487689.

Adding to 121113208 its reverse (802311121), we get a palindrome (923424329).

The spelling of 121113208 in words is "one hundred twenty-one million, one hundred thirteen thousand, two hundred eight".