345543311 has 4 divisors (see below), whose sum is σ = 345609624. Its totient is φ = 345477000.

The previous prime is 345543307. The next prime is 345543349. The reversal of 345543311 is 113345543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113345543 = 29 ⋅3908467.

It is a cyclic number.

It is not a de Polignac number, because 345543311 - 2² = 345543307 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 (345543511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24605 + ... + 36006.

It is an arithmetic number, because the mean of its divisors is an integer number (86402406).

Almost surely, 2^345543311 is an apocalyptic number.

345543311 is a deficient number, since it is larger than the sum of its proper divisors (66313).

345543311 is an equidigital number, since it uses as much as digits as its factorization.

345543311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66312.

The product of its digits is 10800, while the sum is 29.

The square root of 345543311 is about 18588.7953079268. The cubic root of 345543311 is about 701.7258847855.

Adding to 345543311 its reverse (113345543), we get a palindrome (458888854).

The spelling of 345543311 in words is "three hundred forty-five million, five hundred forty-three thousand, three hundred eleven".