1387438812203 has 4 divisors (see below), whose sum is σ = 1387475509200. Its totient is φ = 1387402115208.

The previous prime is 1387438812167. The next prime is 1387438812211. The reversal of 1387438812203 is 3022188347831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1387438812203 - 2⁸ = 1387438811947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387438812503) 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 3 ways as a sum of consecutive naturals, for example, 18291728 + ... + 18367421.

It is an arithmetic number, because the mean of its divisors is an integer number (346868877300).

Almost surely, 2^{1387438812203} is an apocalyptic number.

1387438812203 is a deficient number, since it is larger than the sum of its proper divisors (36696997).

1387438812203 is an equidigital number, since it uses as much as digits as its factorization.

1387438812203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36696996.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 1387438812203 in words is "one trillion, three hundred eighty-seven billion, four hundred thirty-eight million, eight hundred twelve thousand, two hundred three".