340320121 has 8 divisors (see below), whose sum is σ = 355671360. Its totient is φ = 325015152.

The previous prime is 340320089. The next prime is 340320143. The reversal of 340320121 is 121023043.

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 340320121 - 2⁵ = 340320089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340320095 and 340320104.

It is not an unprimeable number, because it can be changed into a prime (340320221) 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, 3931 + ... + 26383.

It is an arithmetic number, because the mean of its divisors is an integer number (44458920).

Almost surely, 2^340320121 is an apocalyptic number.

It is an amenable number.

340320121 is a deficient number, since it is larger than the sum of its proper divisors (15351239).

340320121 is a wasteful number, since it uses less digits than its factorization.

340320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23135.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 340320121 is about 18447.7673716903. The cubic root of 340320121 is about 698.1721844874.

Adding to 340320121 its reverse (121023043), we get a palindrome (461343164).

The spelling of 340320121 in words is "three hundred forty million, three hundred twenty thousand, one hundred twenty-one".