345343311 has 16 divisors (see below), whose sum is σ = 525448800. Its totient is φ = 224005824.

The previous prime is 345343309. The next prime is 345343319. The reversal of 345343311 is 113343543.

345343311 is a `hidden beast` number, since 3 + 4 + 5 + 343 + 311 = 666.

It is not a de Polignac number, because 345343311 - 2¹ = 345343309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345343319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171846 + ... + 173843.

It is an arithmetic number, because the mean of its divisors is an integer number (32840550).

Almost surely, 2^345343311 is an apocalyptic number.

345343311 is a deficient number, since it is larger than the sum of its proper divisors (180105489).

345343311 is a wasteful number, since it uses less digits than its factorization.

345343311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345735 (or 345729 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 345343311 is about 18583.4149445144. The cubic root of 345343311 is about 701.5904726598.

Adding to 345343311 its reverse (113343543), we get a palindrome (458686854).

It can be divided in two parts, 3453 and 43311, that added together give a palindrome (46764).

The spelling of 345343311 in words is "three hundred forty-five million, three hundred forty-three thousand, three hundred eleven".