818223526130 has 8 divisors (see below), whose sum is σ = 1472802347052. Its totient is φ = 327289410448.

The previous prime is 818223526111. The next prime is 818223526139. The reversal of 818223526130 is 31625322818.

818223526130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 777576530809 + 40646995321 = 881803^2 + 201611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×818223526130² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (818223526139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40911176297 + ... + 40911176316.

Almost surely, 2^818223526130 is an apocalyptic number.

818223526130 is a deficient number, since it is larger than the sum of its proper divisors (654578820922).

818223526130 is a wasteful number, since it uses less digits than its factorization.

818223526130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81822352620.

The product of its (nonzero) digits is 138240, while the sum is 41.

Adding to 818223526130 its reverse (31625322818), we get a palindrome (849848848948).

The spelling of 818223526130 in words is "eight hundred eighteen billion, two hundred twenty-three million, five hundred twenty-six thousand, one hundred thirty".