1311841703 has 4 divisors (see below), whose sum is σ = 1389008880. Its totient is φ = 1234674528.

The previous prime is 1311841621. The next prime is 1311841799. The reversal of 1311841703 is 3071481131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3071481131 = 31193 ⋅98467.

It is a cyclic number.

It is not a de Polignac number, because 1311841703 - 2¹⁰ = 1311840679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311841403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38583563 + ... + 38583596.

It is an arithmetic number, because the mean of its divisors is an integer number (347252220).

Almost surely, 2^1311841703 is an apocalyptic number.

1311841703 is a deficient number, since it is larger than the sum of its proper divisors (77167177).

1311841703 is an equidigital number, since it uses as much as digits as its factorization.

1311841703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77167176.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1311841703 is about 36219.3553642248. The cubic root of 1311841703 is about 1094.6967051975.

The spelling of 1311841703 in words is "one billion, three hundred eleven million, eight hundred forty-one thousand, seven hundred three".