212423301420 has 96 divisors (see below), whose sum is σ = 649203932160. Its totient is φ = 51468994560.

The previous prime is 212423301413. The next prime is 212423301443. The reversal of 212423301420 is 24103324212.

It is a happy number.

212423301420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1161549 + ... + 1331931.

It is an arithmetic number, because the mean of its divisors is an integer number (6762540960).

Almost surely, 2^212423301420 is an apocalyptic number.

212423301420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212423301420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324601966080).

212423301420 is an abundant number, since it is smaller than the sum of its proper divisors (436780630740).

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

212423301420 is a wasteful number, since it uses less digits than its factorization.

212423301420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172295 (or 172293 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 212423301420 its reverse (24103324212), we get a palindrome (236526625632).

The spelling of 212423301420 in words is "two hundred twelve billion, four hundred twenty-three million, three hundred one thousand, four hundred twenty".