1311366316 has 18 divisors (see below), whose sum is σ = 2485001652. Its totient is φ = 605245680.

The previous prime is 1311366311. The next prime is 1311366319. The reversal of 1311366316 is 6136631131.

It is a happy number.

It is a super-2 number, since 2×1311366316² = 3439363229478823712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311366311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 969270 + ... + 970621.

Almost surely, 2^1311366316 is an apocalyptic number.

It is an amenable number.

1311366316 is a deficient number, since it is larger than the sum of its proper divisors (1173635336).

1311366316 is a wasteful number, since it uses less digits than its factorization.

1311366316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939921 (or 1939906 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 1311366316 is about 36212.7921596775. The cubic root of 1311366316 is about 1094.5644566557.

Adding to 1311366316 its reverse (6136631131), we get a palindrome (7447997447).

The spelling of 1311366316 in words is "one billion, three hundred eleven million, three hundred sixty-six thousand, three hundred sixteen".