340441243213 has 4 divisors (see below), whose sum is σ = 341209734048. Its totient is φ = 339672752380.

The previous prime is 340441243187. The next prime is 340441243349. The reversal of 340441243213 is 312342144043.

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: 312342144043 = 506333 ⋅616871.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340441243213 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 (340441243013) 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, 384244753 + ... + 384245638.

It is an arithmetic number, because the mean of its divisors is an integer number (85302433512).

Almost surely, 2^340441243213 is an apocalyptic number.

It is an amenable number.

340441243213 is a deficient number, since it is larger than the sum of its proper divisors (768490835).

340441243213 is an equidigital number, since it uses as much as digits as its factorization.

340441243213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768490834.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 340441243213 its reverse (312342144043), we get a palindrome (652783387256).

The spelling of 340441243213 in words is "three hundred forty billion, four hundred forty-one million, two hundred forty-three thousand, two hundred thirteen".