13203013212 has 144 divisors (see below), whose sum is σ = 36591609600. Its totient is φ = 3995965440.

The previous prime is 13203013211. The next prime is 13203013249. The reversal of 13203013212 is 21231030231.

13203013212 is a `hidden beast` number, since 1 + 320 + 301 + 32 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203013211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7379214 + ... + 7381002.

It is an arithmetic number, because the mean of its divisors is an integer number (254108400).

Almost surely, 2^13203013212 is an apocalyptic number.

13203013212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13203013212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18295804800).

13203013212 is an abundant number, since it is smaller than the sum of its proper divisors (23388596388).

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

13203013212 is a wasteful number, since it uses less digits than its factorization.

13203013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236 (or 2231 counting only the distinct ones).

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

Adding to 13203013212 its reverse (21231030231), we get a palindrome (34434043443).

The spelling of 13203013212 in words is "thirteen billion, two hundred three million, thirteen thousand, two hundred twelve".