212030430320 has 40 divisors (see below), whose sum is σ = 504435194736. Its totient is φ = 82839794688.

The previous prime is 212030430299. The next prime is 212030430323. The reversal of 212030430320 is 23034030212.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a junction number, because it is equal to n+sod(n) for n = 212030430292 and 212030430301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030430323) 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 7 ways as a sum of consecutive naturals, for example, 30814937 + ... + 30821816.

Almost surely, 2^212030430320 is an apocalyptic number.

212030430320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212030430320 is an abundant number, since it is smaller than the sum of its proper divisors (292404764416).

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

212030430320 is a wasteful number, since it uses less digits than its factorization.

212030430320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61636809 (or 61636803 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 212030430320 its reverse (23034030212), we get a palindrome (235064460532).

The spelling of 212030430320 in words is "two hundred twelve billion, thirty million, four hundred thirty thousand, three hundred twenty".