1311657341 has 8 divisors (see below), whose sum is σ = 1343627904. Its totient is φ = 1279856160.

The previous prime is 1311657329. The next prime is 1311657349. The reversal of 1311657341 is 1437561131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311657341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311657298 and 1311657307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311657349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26600 + ... + 57713.

It is an arithmetic number, because the mean of its divisors is an integer number (167953488).

Almost surely, 2^1311657341 is an apocalyptic number.

It is an amenable number.

1311657341 is a deficient number, since it is larger than the sum of its proper divisors (31970563).

1311657341 is an equidigital number, since it uses as much as digits as its factorization.

1311657341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84691.

The product of its digits is 7560, while the sum is 32.

The square root of 1311657341 is about 36216.8101991327. The cubic root of 1311657341 is about 1094.6454210807.

The spelling of 1311657341 in words is "one billion, three hundred eleven million, six hundred fifty-seven thousand, three hundred forty-one".