121103010120 has 64 divisors (see below), whose sum is σ = 365747400000. Its totient is φ = 32077392128.

The previous prime is 121103010089. The next prime is 121103010137. The reversal of 121103010120 is 21010301121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 121103010096 and 121103010105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3368670 + ... + 3404429.

It is an arithmetic number, because the mean of its divisors is an integer number (5714803125).

Almost surely, 2^121103010120 is an apocalyptic number.

121103010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121103010120 is an abundant number, since it is smaller than the sum of its proper divisors (244644389880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121103010120 is a wasteful number, since it uses less digits than its factorization.

121103010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6773262 (or 6773258 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 121103010120 its reverse (21010301121), we get a palindrome (142113311241).

The spelling of 121103010120 in words is "one hundred twenty-one billion, one hundred three million, ten thousand, one hundred twenty".