1340505203999 has 16 divisors (see below), whose sum is σ = 1453461897888. Its totient is φ = 1228961365632.

The previous prime is 1340505203941. The next prime is 1340505204001. The reversal of 1340505203999 is 9993025050431.

It is a de Polignac number, because none of the positive numbers 2^k-1340505203999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340505203099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4482089 + ... + 4771805.

It is an arithmetic number, because the mean of its divisors is an integer number (90841368618).

Almost surely, 2^{1340505203999} is an apocalyptic number.

1340505203999 is a deficient number, since it is larger than the sum of its proper divisors (112956693889).

1340505203999 is a wasteful number, since it uses less digits than its factorization.

1340505203999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292154.

The product of its (nonzero) digits is 1312200, while the sum is 50.

The spelling of 1340505203999 in words is "one trillion, three hundred forty billion, five hundred five million, two hundred three thousand, nine hundred ninety-nine".