23434450212 has 24 divisors (see below), whose sum is σ = 54722579296. Its totient is φ = 7805455488.

The previous prime is 23434450211. The next prime is 23434450301. The reversal of 23434450212 is 21205443432.

It is a self number, because there is not a number n which added to its sum of digits gives 23434450212.

It is not an unprimeable number, because it can be changed into a prime (23434450211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 737278 + ... + 768405.

Almost surely, 2^23434450212 is an apocalyptic number.

It is an amenable number.

23434450212 is an abundant number, since it is smaller than the sum of its proper divisors (31288129084).

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

23434450212 is a wasteful number, since it uses less digits than its factorization.

23434450212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506987 (or 1506985 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 23434450212 its reverse (21205443432), we get a palindrome (44639893644).

The spelling of 23434450212 in words is "twenty-three billion, four hundred thirty-four million, four hundred fifty thousand, two hundred twelve".