10010181820 has 24 divisors (see below), whose sum is σ = 21121018128. Its totient is φ = 3985094400.

The previous prime is 10010181781. The next prime is 10010181827. The reversal of 10010181820 is 2818101001.

It is a junction number, because it is equal to n+sod(n) for n = 10010181791 and 10010181800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010181827) 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, 1181821 + ... + 1190260.

It is an arithmetic number, because the mean of its divisors is an integer number (880042422).

Almost surely, 2^10010181820 is an apocalyptic number.

10010181820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010181820 is an abundant number, since it is smaller than the sum of its proper divisors (11110836308).

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

10010181820 is a wasteful number, since it uses less digits than its factorization.

10010181820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372301 (or 2372299 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 22.

Adding to 10010181820 its reverse (2818101001), we get a palindrome (12828282821).

It can be divided in two parts, 10010181 and 820, that added together give a palindrome (10011001).

The spelling of 10010181820 in words is "ten billion, ten million, one hundred eighty-one thousand, eight hundred twenty".