1311442514 has 4 divisors (see below), whose sum is σ = 1967163774. Its totient is φ = 655721256.

The previous prime is 1311442511. The next prime is 1311442607. The reversal of 1311442514 is 4152441131.

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., 841290025 + 470152489 = 29005^2 + 21683^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1311442511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327860627 + ... + 327860630.

Almost surely, 2^1311442514 is an apocalyptic number.

1311442514 is a deficient number, since it is larger than the sum of its proper divisors (655721260).

1311442514 is an equidigital number, since it uses as much as digits as its factorization.

1311442514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655721259.

The product of its digits is 1920, while the sum is 26.

The square root of 1311442514 is about 36213.8442311777. The cubic root of 1311442514 is about 1094.5856564293.

Adding to 1311442514 its reverse (4152441131), we get a palindrome (5463883645).

The spelling of 1311442514 in words is "one billion, three hundred eleven million, four hundred forty-two thousand, five hundred fourteen".