1311434244 has 18 divisors (see below), whose sum is σ = 3315014430. Its totient is φ = 437144736.

The previous prime is 1311434237. The next prime is 1311434251. The reversal of 1311434244 is 4424341131.

1311434244 is a `hidden beast` number, since 1 + 311 + 4 + 342 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1311434237) and next prime (1311434251).

It can be written as a sum of positive squares in only one way, i.e., 688432644 + 623001600 = 26238^2 + 24960^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 18214329 + ... + 18214400.

Almost surely, 2^1311434244 is an apocalyptic number.

It is an amenable number.

1311434244 is an abundant number, since it is smaller than the sum of its proper divisors (2003580186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311434244 is a wasteful number, since it uses less digits than its factorization.

1311434244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36428739 (or 36428734 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1311434244 is about 36213.7300481461. The cubic root of 1311434244 is about 1094.5833555933.

Adding to 1311434244 its reverse (4424341131), we get a palindrome (5735775375).

The spelling of 1311434244 in words is "one billion, three hundred eleven million, four hundred thirty-four thousand, two hundred forty-four".