1820000911100 has 36 divisors (see below), whose sum is σ = 3951726891000. Its totient is φ = 727571808960.

The previous prime is 1820000911073. The next prime is 1820000911181. The reversal of 1820000911100 is 11190000281.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5186195 + ... + 5525994.

Almost surely, 2^{1820000911100} is an apocalyptic number.

1820000911100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1820000911100 is an abundant number, since it is smaller than the sum of its proper divisors (2131725979900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1820000911100 is a wasteful number, since it uses less digits than its factorization.

1820000911100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10713902 (or 10713895 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 1820000911100 its reverse (11190000281), we get a palindrome (1831190911381).

The spelling of 1820000911100 in words is "one trillion, eight hundred twenty billion, nine hundred eleven thousand, one hundred".