121020107 has 8 divisors (see below), whose sum is σ = 130508784. Its totient is φ = 111557088.

The previous prime is 121020091. The next prime is 121020113. The reversal of 121020107 is 701020121.

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

It is a cyclic number.

It is not a de Polignac number, because 121020107 - 2⁴ = 121020091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121020091 and 121020100.

It is not an unprimeable number, because it can be changed into a prime (121020167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4028 + ... + 16070.

It is an arithmetic number, because the mean of its divisors is an integer number (16313598).

Almost surely, 2^121020107 is an apocalyptic number.

121020107 is a deficient number, since it is larger than the sum of its proper divisors (9488677).

121020107 is a wasteful number, since it uses less digits than its factorization.

121020107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12829.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 121020107 is about 11000.9139165798. The cubic root of 121020107 is about 494.6361397717.

Adding to 121020107 its sum of digits (14), we get a palindrome (121020121).

Adding to 121020107 its reverse (701020121), we get a palindrome (822040228).

The spelling of 121020107 in words is "one hundred twenty-one million, twenty thousand, one hundred seven".