1311330442 has 8 divisors (see below), whose sum is σ = 2030447232. Its totient is φ = 634514700.

The previous prime is 1311330437. The next prime is 1311330457. The reversal of 1311330442 is 2440331131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10575184 + ... + 10575307.

It is an arithmetic number, because the mean of its divisors is an integer number (253805904).

Almost surely, 2^1311330442 is an apocalyptic number.

1311330442 is a deficient number, since it is larger than the sum of its proper divisors (719116790).

1311330442 is a wasteful number, since it uses less digits than its factorization.

1311330442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21150524.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1311330442 is about 36212.2968340866. The cubic root of 1311330442 is about 1094.5544755230.

Adding to 1311330442 its reverse (2440331131), we get a palindrome (3751661573).

The spelling of 1311330442 in words is "one billion, three hundred eleven million, three hundred thirty thousand, four hundred forty-two".