340512215605343 has 4 divisors (see below), whose sum is σ = 341165789916048. Its totient is φ = 339858641294640.

The previous prime is 340512215605259. The next prime is 340512215605361. The reversal of 340512215605343 is 343506512215043.

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

It is a cyclic number.

It is not a de Polignac number, because 340512215605343 - 2²⁶ = 340512148496479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340512215605294 and 340512215605303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340512215605543) 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, 326787154571 + ... + 326787155612.

It is an arithmetic number, because the mean of its divisors is an integer number (85291447479012).

Almost surely, 2^{340512215605343} is an apocalyptic number.

340512215605343 is a deficient number, since it is larger than the sum of its proper divisors (653574310705).

340512215605343 is an equidigital number, since it uses as much as digits as its factorization.

340512215605343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653574310704.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 340512215605343 in words is "three hundred forty trillion, five hundred twelve billion, two hundred fifteen million, six hundred five thousand, three hundred forty-three".