1340206103 has 4 divisors (see below), whose sum is σ = 1352066448. Its totient is φ = 1328345760.

The previous prime is 1340206079. The next prime is 1340206117. The reversal of 1340206103 is 3016020431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3016020431 = 71 ⋅42479161.

It is a cyclic number.

It is not a de Polignac number, because 1340206103 - 2⁶ = 1340206039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340206163) 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, 5930003 + ... + 5930228.

It is an arithmetic number, because the mean of its divisors is an integer number (338016612).

Almost surely, 2^1340206103 is an apocalyptic number.

1340206103 is a deficient number, since it is larger than the sum of its proper divisors (11860345).

1340206103 is a wasteful number, since it uses less digits than its factorization.

1340206103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11860344.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1340206103 is about 36608.8254796572. The cubic root of 1340206103 is about 1102.5302917241.

Adding to 1340206103 its reverse (3016020431), we get a palindrome (4356226534).

The spelling of 1340206103 in words is "one billion, three hundred forty million, two hundred six thousand, one hundred three".