13212443430 has 24 divisors (see below), whose sum is σ = 34352353152. Its totient is φ = 3523318224.

The previous prime is 13212443417. The next prime is 13212443437. The reversal of 13212443430 is 3434421231.

13212443430 is a `hidden beast` number, since 1 + 3 + 212 + 443 + 4 + 3 + 0 = 666.

It is a super-2 number, since 2×13212443430² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13212443394 and 13212443403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212443437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73402374 + ... + 73402553.

It is an arithmetic number, because the mean of its divisors is an integer number (1431348048).

Almost surely, 2^13212443430 is an apocalyptic number.

13212443430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13212443430 is an abundant number, since it is smaller than the sum of its proper divisors (21139909722).

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

13212443430 is a wasteful number, since it uses less digits than its factorization.

13212443430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146804940 (or 146804937 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13212443430 its reverse (3434421231), we get a palindrome (16646864661).

The spelling of 13212443430 in words is "thirteen billion, two hundred twelve million, four hundred forty-three thousand, four hundred thirty".