13204224312 has 64 divisors (see below), whose sum is σ = 33797153280. Its totient is φ = 4296644352.

The previous prime is 13204224311. The next prime is 13204224317. The reversal of 13204224312 is 21342240231.

It is a happy number.

It is a super-2 number, since 2×13204224312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204224311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3540993 + ... + 3544719.

It is an arithmetic number, because the mean of its divisors is an integer number (528080520).

Almost surely, 2^13204224312 is an apocalyptic number.

13204224312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13204224312 is an abundant number, since it is smaller than the sum of its proper divisors (20592928968).

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

13204224312 is a wasteful number, since it uses less digits than its factorization.

13204224312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212 (or 7208 counting only the distinct ones).

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

Adding to 13204224312 its reverse (21342240231), we get a palindrome (34546464543).

The spelling of 13204224312 in words is "thirteen billion, two hundred four million, two hundred twenty-four thousand, three hundred twelve".