1813381010108 has 12 divisors (see below), whose sum is σ = 3173426339160. Its totient is φ = 906687770352.

The previous prime is 1813381010107. The next prime is 1813381010153. The reversal of 1813381010108 is 8010101833181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813381010107) 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, 1859135 + ... + 2661417.

It is an arithmetic number, because the mean of its divisors is an integer number (264452194930).

Almost surely, 2^{1813381010108} is an apocalyptic number.

It is an amenable number.

1813381010108 is a deficient number, since it is larger than the sum of its proper divisors (1360045329052).

1813381010108 is a wasteful number, since it uses less digits than its factorization.

1813381010108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367356 (or 1367354 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 35.

Adding to 1813381010108 its reverse (8010101833181), we get a palindrome (9823482843289).

The spelling of 1813381010108 in words is "one trillion, eight hundred thirteen billion, three hundred eighty-one million, ten thousand, one hundred eight".