3113311345 has 4 divisors (see below), whose sum is σ = 3735973620. Its totient is φ = 2490649072.

The previous prime is 3113311309. The next prime is 3113311363. The reversal of 3113311345 is 5431133113.

3113311345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5431133113 = 7 ⋅775876159.

It can be written as a sum of positive squares in 2 ways, for example, as 2235492961 + 877818384 = 47281^2 + 29628^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113311345 - 2¹³ = 3113303153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311331130 + ... + 311331139.

It is an arithmetic number, because the mean of its divisors is an integer number (933993405).

Almost surely, 2^3113311345 is an apocalyptic number.

It is an amenable number.

3113311345 is a deficient number, since it is larger than the sum of its proper divisors (622662275).

3113311345 is an equidigital number, since it uses as much as digits as its factorization.

3113311345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622662274.

The product of its digits is 1620, while the sum is 25.

The square root of 3113311345 is about 55797.0549850079. The cubic root of 3113311345 is about 1460.1837738583.

Adding to 3113311345 its reverse (5431133113), we get a palindrome (8544444458).

The spelling of 3113311345 in words is "three billion, one hundred thirteen million, three hundred eleven thousand, three hundred forty-five".