1340203123303 has 16 divisors (see below), whose sum is σ = 1475164348416. Its totient is φ = 1207432051840.

The previous prime is 1340203123277. The next prime is 1340203123307. The reversal of 1340203123303 is 3033213020431.

It is a cyclic number.

It is not a de Polignac number, because 1340203123303 - 2⁵ = 1340203123271 is a prime.

It is a super-2 number, since 2×1340203123303² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340203123307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10435800 + ... + 10563442.

It is an arithmetic number, because the mean of its divisors is an integer number (92197771776).

Almost surely, 2^{1340203123303} is an apocalyptic number.

1340203123303 is a deficient number, since it is larger than the sum of its proper divisors (134961225113).

1340203123303 is a wasteful number, since it uses less digits than its factorization.

1340203123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136214.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1340203123303 its reverse (3033213020431), we get a palindrome (4373416143734).

The spelling of 1340203123303 in words is "one trillion, three hundred forty billion, two hundred three million, one hundred twenty-three thousand, three hundred three".