121118113 has 4 divisors (see below), whose sum is σ = 121182768. Its totient is φ = 121053460.

The previous prime is 121118099. The next prime is 121118117. The reversal of 121118113 is 311811121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121118113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121118117) 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, 29431 + ... + 33292.

It is an arithmetic number, because the mean of its divisors is an integer number (30295692).

Almost surely, 2^121118113 is an apocalyptic number.

It is an amenable number.

121118113 is a deficient number, since it is larger than the sum of its proper divisors (64655).

121118113 is an equidigital number, since it uses as much as digits as its factorization.

121118113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64654.

The product of its digits is 48, while the sum is 19.

The square root of 121118113 is about 11005.3674631972. The cubic root of 121118113 is about 494.7696278629.

Adding to 121118113 its reverse (311811121), we get a palindrome (432929234).

The spelling of 121118113 in words is "one hundred twenty-one million, one hundred eighteen thousand, one hundred thirteen".