1311345607 has 12 divisors (see below), whose sum is σ = 1552274920. Its totient is φ = 1100428560.

The previous prime is 1311345583. The next prime is 1311345617. The reversal of 1311345607 is 7065431131.

It is not a de Polignac number, because 1311345607 - 2¹⁹ = 1310821319 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 (1311345617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415257 + ... + 418402.

Almost surely, 2^1311345607 is an apocalyptic number.

1311345607 is a deficient number, since it is larger than the sum of its proper divisors (240929313).

1311345607 is a wasteful number, since it uses less digits than its factorization.

1311345607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833694 (or 833683 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1311345607 is about 36212.5062236791. The cubic root of 1311345607 is about 1094.5586948650.

Adding to 1311345607 its reverse (7065431131), we get a palindrome (8376776738).

The spelling of 1311345607 in words is "one billion, three hundred eleven million, three hundred forty-five thousand, six hundred seven".