1340342313043 has 8 divisors (see below), whose sum is σ = 1398785027328. Its totient is φ = 1281913512264.

The previous prime is 1340342313031. The next prime is 1340342313049. The reversal of 1340342313043 is 3403132430431.

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-1340342313043 is a prime.

It is a super-2 number, since 2×1340342313043² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340342312996 and 1340342313014.

It is not an unprimeable number, because it can be changed into a prime (1340342313049) 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, 3281271 + ... + 3667072.

It is an arithmetic number, because the mean of its divisors is an integer number (174848128416).

Almost surely, 2^{1340342313043} is an apocalyptic number.

1340342313043 is a deficient number, since it is larger than the sum of its proper divisors (58442714285).

1340342313043 is an equidigital number, since it uses as much as digits as its factorization.

1340342313043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6956753.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 1340342313043 its reverse (3403132430431), we get a palindrome (4743474743474).

The spelling of 1340342313043 in words is "one trillion, three hundred forty billion, three hundred forty-two million, three hundred thirteen thousand, forty-three".