121063421 has 16 divisors (see below), whose sum is σ = 133488000. Its totient is φ = 109283328.

The previous prime is 121063417. The next prime is 121063427. The reversal of 121063421 is 124360121.

It is a cyclic number.

It is not a de Polignac number, because 121063421 - 2² = 121063417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121063393 and 121063402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121063427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195905 + ... + 196521.

It is an arithmetic number, because the mean of its divisors is an integer number (8343000).

Almost surely, 2^121063421 is an apocalyptic number.

It is an amenable number.

121063421 is a deficient number, since it is larger than the sum of its proper divisors (12424579).

121063421 is a wasteful number, since it uses less digits than its factorization.

121063421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 121063421 is about 11002.8823950818. The cubic root of 121063421 is about 494.6951440556.

The spelling of 121063421 in words is "one hundred twenty-one million, sixty-three thousand, four hundred twenty-one".