121020193 has 8 divisors (see below), whose sum is σ = 139578560. Its totient is φ = 102779280.

The previous prime is 121020191. The next prime is 121020209. The reversal of 121020193 is 391020121.

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 121020193 - 2¹ = 121020191 is a prime.

It is a super-2 number, since 2×121020193² = 29291774227514498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121020193.

It is not an unprimeable number, because it can be changed into a prime (121020191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78543 + ... + 80068.

It is an arithmetic number, because the mean of its divisors is an integer number (17447320).

Almost surely, 2^121020193 is an apocalyptic number.

It is an amenable number.

121020193 is a deficient number, since it is larger than the sum of its proper divisors (18558367).

121020193 is a wasteful number, since it uses less digits than its factorization.

121020193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158727.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 121020193 is about 11000.9178253453. The cubic root of 121020193 is about 494.6362569387.

The spelling of 121020193 in words is "one hundred twenty-one million, twenty thousand, one hundred ninety-three".