121075321 has 8 divisors (see below), whose sum is σ = 122889600. Its totient is φ = 119268240.

The previous prime is 121075291. The next prime is 121075327. The reversal of 121075321 is 123570121.

It is a happy number.

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 121075321 - 2⁷ = 121075193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121075292 and 121075301.

It is not an unprimeable number, because it can be changed into a prime (121075327) 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, 38706 + ... + 41716.

It is an arithmetic number, because the mean of its divisors is an integer number (15361200).

Almost surely, 2^121075321 is an apocalyptic number.

It is an amenable number.

121075321 is a deficient number, since it is larger than the sum of its proper divisors (1814279).

121075321 is an equidigital number, since it uses as much as digits as its factorization.

121075321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 121075321 is about 11003.4231491841. The cubic root of 121075321 is about 494.7113523077.

The spelling of 121075321 in words is "one hundred twenty-one million, seventy-five thousand, three hundred twenty-one".