1340105323 has 8 divisors (see below), whose sum is σ = 1347397920. Its totient is φ = 1332827520.

The previous prime is 1340105309. The next prime is 1340105369. The reversal of 1340105323 is 3235010431.

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 1340105323 - 2⁹ = 1340104811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340105294 and 1340105303.

It is not an unprimeable number, because it can be changed into a prime (1340105303) 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, 210633 + ... + 216901.

It is an arithmetic number, because the mean of its divisors is an integer number (168424740).

Almost surely, 2^1340105323 is an apocalyptic number.

1340105323 is a deficient number, since it is larger than the sum of its proper divisors (7292597).

1340105323 is an equidigital number, since it uses as much as digits as its factorization.

1340105323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7397.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1340105323 is about 36607.4490097302. The cubic root of 1340105323 is about 1102.5026552316.

Adding to 1340105323 its reverse (3235010431), we get a palindrome (4575115754).

The spelling of 1340105323 in words is "one billion, three hundred forty million, one hundred five thousand, three hundred twenty-three".