212423201344 has 28 divisors (see below), whose sum is σ = 446323015404. Its totient is φ = 99963858944.

The previous prime is 212423201339. The next prime is 212423201363. The reversal of 212423201344 is 443102324212.

It can be written as a sum of positive squares in 2 ways, for example, as 147234898944 + 65188302400 = 383712^2 + 255320^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97619869 + ... + 97622044.

It is an arithmetic number, because the mean of its divisors is an integer number (15940107693).

Almost surely, 2^212423201344 is an apocalyptic number.

It is an amenable number.

212423201344 is an abundant number, since it is smaller than the sum of its proper divisors (233899814060).

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

212423201344 is a wasteful number, since it uses less digits than its factorization.

212423201344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195241942 (or 195241932 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 212423201344 its reverse (443102324212), we get a palindrome (655525525556).

The spelling of 212423201344 in words is "two hundred twelve billion, four hundred twenty-three million, two hundred one thousand, three hundred forty-four".