345320113 has 4 divisors (see below), whose sum is σ = 345849588. Its totient is φ = 344790640.

The previous prime is 345320093. The next prime is 345320141. The reversal of 345320113 is 311023543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311023543 = 109 ⋅2853427.

It can be written as a sum of positive squares in 2 ways, for example, as 156450064 + 188870049 = 12508^2 + 13743^2 .

It is a cyclic number.

It is not a de Polignac number, because 345320113 - 2¹³ = 345311921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345320153) 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, 263758 + ... + 265063.

It is an arithmetic number, because the mean of its divisors is an integer number (86462397).

Almost surely, 2^345320113 is an apocalyptic number.

It is an amenable number.

345320113 is a deficient number, since it is larger than the sum of its proper divisors (529475).

345320113 is an equidigital number, since it uses as much as digits as its factorization.

345320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529474.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 345320113 is about 18582.7907753383. The cubic root of 345320113 is about 701.5747628239.

Adding to 345320113 its reverse (311023543), we get a palindrome (656343656).

The spelling of 345320113 in words is "three hundred forty-five million, three hundred twenty thousand, one hundred thirteen".