38181820203 has 8 divisors (see below), whose sum is σ = 56565659600. Its totient is φ = 25454546784.

The previous prime is 38181820169. The next prime is 38181820211. The reversal of 38181820203 is 30202818183.

38181820203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38181820203 - 2¹⁷ = 38181689131 is a prime.

It is a super-2 number, since 2×38181820203² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38181820603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707070718 + ... + 707070771.

It is an arithmetic number, because the mean of its divisors is an integer number (7070707450).

Almost surely, 2^38181820203 is an apocalyptic number.

38181820203 is a deficient number, since it is larger than the sum of its proper divisors (18383839397).

38181820203 is a wasteful number, since it uses less digits than its factorization.

38181820203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414141498 (or 1414141492 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 38181820203 in words is "thirty-eight billion, one hundred eighty-one million, eight hundred twenty thousand, two hundred three".