1311309974 has 16 divisors (see below), whose sum is σ = 2118956112. Its totient is φ = 605023968.

The previous prime is 1311309959. The next prime is 1311310031. The reversal of 1311309974 is 4799031131.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101357 + ... + 113559.

It is an arithmetic number, because the mean of its divisors is an integer number (132434757).

Almost surely, 2^1311309974 is an apocalyptic number.

1311309974 is a deficient number, since it is larger than the sum of its proper divisors (807646138).

1311309974 is a wasteful number, since it uses less digits than its factorization.

1311309974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16351.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1311309974 is about 36212.0142218021. The cubic root of 1311309974 is about 1094.5487806814.

The spelling of 1311309974 in words is "one billion, three hundred eleven million, three hundred nine thousand, nine hundred seventy-four".