340230442412321 has 16 divisors (see below), whose sum is σ = 346545810450000. Its totient is φ = 333978883070976.

The previous prime is 340230442412303. The next prime is 340230442412339. The reversal of 340230442412321 is 123214244032043.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (340230442412303) and next prime (340230442412339).

It can be written as a sum of positive squares in 8 ways, for example, as 48489148462225 + 291741293950096 = 6963415^2 + 17080436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340230442412321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340230447412321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16803236 + ... + 31029173.

It is an arithmetic number, because the mean of its divisors is an integer number (21659113153125).

Almost surely, 2^{340230442412321} is an apocalyptic number.

It is an amenable number.

340230442412321 is a deficient number, since it is larger than the sum of its proper divisors (6315368037679).

340230442412321 is a wasteful number, since it uses less digits than its factorization.

340230442412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47833076.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 340230442412321 its reverse (123214244032043), we get a palindrome (463444686444364).

The spelling of 340230442412321 in words is "three hundred forty trillion, two hundred thirty billion, four hundred forty-two million, four hundred twelve thousand, three hundred twenty-one".