121302321 has 8 divisors (see below), whose sum is σ = 184841664. Its totient is φ = 69315600.

The previous prime is 121302277. The next prime is 121302323. The reversal of 121302321 is 123203121.

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

It is not a de Polignac number, because 121302321 - 2¹¹ = 121300273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121302321.

It is not an unprimeable number, because it can be changed into a prime (121302323) 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, 2888130 + ... + 2888171.

It is an arithmetic number, because the mean of its divisors is an integer number (23105208).

Almost surely, 2^121302321 is an apocalyptic number.

It is an amenable number.

121302321 is a deficient number, since it is larger than the sum of its proper divisors (63539343).

121302321 is an equidigital number, since it uses as much as digits as its factorization.

121302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776311.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121302321 is about 11013.7332907602. The cubic root of 121302321 is about 495.0203317840.

Adding to 121302321 its reverse (123203121), we get a palindrome (244505442).

The spelling of 121302321 in words is "one hundred twenty-one million, three hundred two thousand, three hundred twenty-one".