345312213343 has 4 divisors (see below), whose sum is σ = 352659281760. Its totient is φ = 337965144928.

The previous prime is 345312213341. The next prime is 345312213353. The reversal of 345312213343 is 343312213543.

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 345312213343 - 2¹ = 345312213341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345312213299 and 345312213308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345312213341) 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, 3673534138 + ... + 3673534231.

It is an arithmetic number, because the mean of its divisors is an integer number (88164820440).

Almost surely, 2^345312213343 is an apocalyptic number.

345312213343 is a deficient number, since it is larger than the sum of its proper divisors (7347068417).

345312213343 is an equidigital number, since it uses as much as digits as its factorization.

345312213343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347068416.

The product of its digits is 77760, while the sum is 34.

Adding to 345312213343 its reverse (343312213543), we get a palindrome (688624426886).

The spelling of 345312213343 in words is "three hundred forty-five billion, three hundred twelve million, two hundred thirteen thousand, three hundred forty-three".