1311374617347 has 4 divisors (see below), whose sum is σ = 1748499489800. Its totient is φ = 874249744896.

The previous prime is 1311374617337. The next prime is 1311374617417. The reversal of 1311374617347 is 7437164731131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1311374617347 - 2²² = 1311370423043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311374617296 and 1311374617305.

It is not an unprimeable number, because it can be changed into a prime (1311374617337) 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, 218562436222 + ... + 218562436227.

It is an arithmetic number, because the mean of its divisors is an integer number (437124872450).

Almost surely, 2^{1311374617347} is an apocalyptic number.

1311374617347 is a deficient number, since it is larger than the sum of its proper divisors (437124872453).

1311374617347 is an equidigital number, since it uses as much as digits as its factorization.

1311374617347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437124872452.

The product of its digits is 889056, while the sum is 48.

The spelling of 1311374617347 in words is "one trillion, three hundred eleven billion, three hundred seventy-four million, six hundred seventeen thousand, three hundred forty-seven".