340321433213 has 4 divisors (see below), whose sum is σ = 340322836320. Its totient is φ = 340320030108.

The previous prime is 340321433209. The next prime is 340321433227. The reversal of 340321433213 is 312334123043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312334123043 = 67 ⋅4661703329.

It is a cyclic number.

It is not a de Polignac number, because 340321433213 - 2² = 340321433209 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 (340321433293) 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, 233753 + ... + 857486.

It is an arithmetic number, because the mean of its divisors is an integer number (85080709080).

Almost surely, 2^340321433213 is an apocalyptic number.

It is an amenable number.

340321433213 is a deficient number, since it is larger than the sum of its proper divisors (1403107).

340321433213 is a wasteful number, since it uses less digits than its factorization.

340321433213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403106.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 340321433213 its reverse (312334123043), we get a palindrome (652655556256).

The spelling of 340321433213 in words is "three hundred forty billion, three hundred twenty-one million, four hundred thirty-three thousand, two hundred thirteen".