1311042984 has 16 divisors (see below), whose sum is σ = 3277607520. Its totient is φ = 437014320.

The previous prime is 1311042973. The next prime is 1311043003. The reversal of 1311042984 is 4892401131.

It is a happy number.

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, 27313372 + ... + 27313419.

It is an arithmetic number, because the mean of its divisors is an integer number (204850470).

Almost surely, 2^1311042984 is an apocalyptic number.

It is an amenable number.

1311042984 is an abundant number, since it is smaller than the sum of its proper divisors (1966564536).

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

1311042984 is a wasteful number, since it uses less digits than its factorization.

1311042984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54626800 (or 54626796 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1311042984 is about 36208.3275504407. The cubic root of 1311042984 is about 1094.4744902338.

The spelling of 1311042984 in words is "one billion, three hundred eleven million, forty-two thousand, nine hundred eighty-four".