1311683523 has 8 divisors (see below), whose sum is σ = 1758068736. Its totient is φ = 869877000.

The previous prime is 1311683509. The next prime is 1311683533. The reversal of 1311683523 is 3253861131.

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

It is not a de Polignac number, because 1311683523 - 2⁶ = 1311683459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311683533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144003 + ... + 1145148.

It is an arithmetic number, because the mean of its divisors is an integer number (219758592).

Almost surely, 2^1311683523 is an apocalyptic number.

1311683523 is a deficient number, since it is larger than the sum of its proper divisors (446385213).

1311683523 is a wasteful number, since it uses less digits than its factorization.

1311683523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289345.

The product of its digits is 12960, while the sum is 33.

The square root of 1311683523 is about 36217.1716593110. The cubic root of 1311683523 is about 1094.6527044402.

The spelling of 1311683523 in words is "one billion, three hundred eleven million, six hundred eighty-three thousand, five hundred twenty-three".