121123102113 has 64 divisors (see below), whose sum is σ = 205937786880. Its totient is φ = 69779375424.

The previous prime is 121123102081. The next prime is 121123102117. The reversal of 121123102113 is 311201321121.

It is not a de Polignac number, because 121123102113 - 2⁵ = 121123102081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121123102117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 219820 + ... + 539042.

It is an arithmetic number, because the mean of its divisors is an integer number (3217777920).

Almost surely, 2^121123102113 is an apocalyptic number.

121123102113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121123102113 is a deficient number, since it is larger than the sum of its proper divisors (84814684767).

121123102113 is a wasteful number, since it uses less digits than its factorization.

121123102113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319315 (or 319309 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121123102113 its reverse (311201321121), we get a palindrome (432324423234).

The spelling of 121123102113 in words is "one hundred twenty-one billion, one hundred twenty-three million, one hundred two thousand, one hundred thirteen".