212323031300 has 18 divisors (see below), whose sum is σ = 460740978138. Its totient is φ = 84929212480.

The previous prime is 212323031267. The next prime is 212323031311. The reversal of 212323031300 is 3130323212.

It can be written as a sum of positive squares in 3 ways, for example, as 2234641984 + 210088389316 = 47272^2 + 458354^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1061615057 + ... + 1061615256.

Almost surely, 2^212323031300 is an apocalyptic number.

212323031300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212323031300 is an abundant number, since it is smaller than the sum of its proper divisors (248417946838).

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

212323031300 is a wasteful number, since it uses less digits than its factorization.

212323031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123230327 (or 2123230320 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 212323031300 its reverse (3130323212), we get a palindrome (215453354512).

The spelling of 212323031300 in words is "two hundred twelve billion, three hundred twenty-three million, thirty-one thousand, three hundred".