13212030312 has 64 divisors (see below), whose sum is σ = 39523176000. Its totient is φ = 4065239232.

The previous prime is 13212030289. The next prime is 13212030319. The reversal of 13212030312 is 21303021231.

13212030312 is a `hidden beast` number, since 1 + 321 + 2 + 0 + 30 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13212030319) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2349762 + ... + 2355377.

It is an arithmetic number, because the mean of its divisors is an integer number (617549625).

Almost surely, 2^13212030312 is an apocalyptic number.

13212030312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13212030312 is an abundant number, since it is smaller than the sum of its proper divisors (26311145688).

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

13212030312 is a wasteful number, since it uses less digits than its factorization.

13212030312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705167 (or 4705157 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13212030312 its reverse (21303021231), we get a palindrome (34515051543).

The spelling of 13212030312 in words is "thirteen billion, two hundred twelve million, thirty thousand, three hundred twelve".