1938284730203 has 4 divisors (see below), whose sum is σ = 1938325852320. Its totient is φ = 1938243608088.

The previous prime is 1938284730199. The next prime is 1938284730209. The reversal of 1938284730203 is 3020374828391.

It is a happy number.

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 1938284730203 - 2² = 1938284730199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1938284730209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20490275 + ... + 20584652.

It is an arithmetic number, because the mean of its divisors is an integer number (484581463080).

Almost surely, 2^{1938284730203} is an apocalyptic number.

1938284730203 is a deficient number, since it is larger than the sum of its proper divisors (41122117).

1938284730203 is an equidigital number, since it uses as much as digits as its factorization.

1938284730203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41122116.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 1938284730203 in words is "one trillion, nine hundred thirty-eight billion, two hundred eighty-four million, seven hundred thirty thousand, two hundred three".