1311463066 has 4 divisors (see below), whose sum is σ = 1967194602. Its totient is φ = 655731532.

The previous prime is 1311463057. The next prime is 1311463099. The reversal of 1311463066 is 6603641131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 874444041 + 437019025 = 29571^2 + 20905^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327865765 + ... + 327865768.

Almost surely, 2^1311463066 is an apocalyptic number.

1311463066 is a deficient number, since it is larger than the sum of its proper divisors (655731536).

1311463066 is an equidigital number, since it uses as much as digits as its factorization.

1311463066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655731535.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1311463066 is about 36214.1279889493. The cubic root of 1311463066 is about 1094.5913742570.

The spelling of 1311463066 in words is "one billion, three hundred eleven million, four hundred sixty-three thousand, sixty-six".