1311954883 has 4 divisors (see below), whose sum is σ = 1381005160. Its totient is φ = 1242904608.

The previous prime is 1311954871. The next prime is 1311954887. The reversal of 1311954883 is 3884591131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3884591131 = 103 ⋅37714477.

It is not a de Polignac number, because 1311954883 - 2²⁵ = 1278400451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311954887) 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 3 ways as a sum of consecutive naturals, for example, 34525110 + ... + 34525147.

It is an arithmetic number, because the mean of its divisors is an integer number (345251290).

Almost surely, 2^1311954883 is an apocalyptic number.

1311954883 is a deficient number, since it is larger than the sum of its proper divisors (69050277).

1311954883 is an equidigital number, since it uses as much as digits as its factorization.

1311954883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69050276.

The product of its digits is 103680, while the sum is 43.

The square root of 1311954883 is about 36220.9177548002. The cubic root of 1311954883 is about 1094.7281861833.

The spelling of 1311954883 in words is "one billion, three hundred eleven million, nine hundred fifty-four thousand, eight hundred eighty-three".