121340323 has 8 divisors (see below), whose sum is σ = 133455168. Its totient is φ = 109622784.

The previous prime is 121340299. The next prime is 121340347. The reversal of 121340323 is 323043121.

It is an interprime number because it is at equal distance from previous prime (121340299) and next prime (121340347).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121340323 is a prime.

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 121340323.

It is not an unprimeable number, because it can be changed into a prime (121340393) 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, 98686 + ... + 99907.

It is an arithmetic number, because the mean of its divisors is an integer number (16681896).

Almost surely, 2^121340323 is an apocalyptic number.

121340323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121340323 is a deficient number, since it is larger than the sum of its proper divisors (12114845).

121340323 is a wasteful number, since it uses less digits than its factorization.

121340323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198653.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 121340323 is about 11015.4583654063. The cubic root of 121340323 is about 495.0720202660.

Adding to 121340323 its reverse (323043121), we get a palindrome (444383444).

The spelling of 121340323 in words is "one hundred twenty-one million, three hundred forty thousand, three hundred twenty-three".