1311445306 has 8 divisors (see below), whose sum is σ = 1967565600. Its totient is φ = 655590108.

The previous prime is 1311445259. The next prime is 1311445319. The reversal of 1311445306 is 6035441131.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 53406 + ... + 73993.

It is an arithmetic number, because the mean of its divisors is an integer number (245945700).

Almost surely, 2^1311445306 is an apocalyptic number.

1311445306 is a deficient number, since it is larger than the sum of its proper divisors (656120294).

1311445306 is a wasteful number, since it uses less digits than its factorization.

1311445306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132548.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1311445306 is about 36213.8827799506. The cubic root of 1311445306 is about 1094.5864332027.

Adding to 1311445306 its reverse (6035441131), we get a palindrome (7346886437).

The spelling of 1311445306 in words is "one billion, three hundred eleven million, four hundred forty-five thousand, three hundred six".