1311102343 has 8 divisors (see below), whose sum is σ = 1339511040. Its totient is φ = 1282997760.

The previous prime is 1311102329. The next prime is 1311102361. The reversal of 1311102343 is 3432011131.

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

It is a cyclic number.

It is not a de Polignac number, because 1311102343 - 2¹³ = 1311094151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311102343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311102643) 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, 67303 + ... + 84568.

It is an arithmetic number, because the mean of its divisors is an integer number (167438880).

Almost surely, 2^1311102343 is an apocalyptic number.

1311102343 is a deficient number, since it is larger than the sum of its proper divisors (28408697).

1311102343 is an equidigital number, since it uses as much as digits as its factorization.

1311102343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152057.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1311102343 is about 36209.1472282903. The cubic root of 1311102343 is about 1094.4910078542.

Adding to 1311102343 its reverse (3432011131), we get a palindrome (4743113474).

The spelling of 1311102343 in words is "one billion, three hundred eleven million, one hundred two thousand, three hundred forty-three".