340030021231213 has 4 divisors (see below), whose sum is σ = 340040801834748. Its totient is φ = 340019240627680.

The previous prime is 340030021231189. The next prime is 340030021231249. The reversal of 340030021231213 is 312132120030043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77373609435529 + 262656411795684 = 8796227^2 + 16206678^2 .

It is a cyclic number.

It is not a de Polignac number, because 340030021231213 - 2²¹ = 340030019134061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340030021231513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5390254456 + ... + 5390317537.

It is an arithmetic number, because the mean of its divisors is an integer number (85010200458687).

Almost surely, 2^{340030021231213} is an apocalyptic number.

It is an amenable number.

340030021231213 is a deficient number, since it is larger than the sum of its proper divisors (10780603535).

340030021231213 is a wasteful number, since it uses less digits than its factorization.

340030021231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10780603534.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 340030021231213 its reverse (312132120030043), we get a palindrome (652162141261256).

The spelling of 340030021231213 in words is "three hundred forty trillion, thirty billion, twenty-one million, two hundred thirty-one thousand, two hundred thirteen".