13203213012 has 144 divisors (see below), whose sum is σ = 38757700800. Its totient is φ = 3747617280.

The previous prime is 13203213011. The next prime is 13203213059. The reversal of 13203213012 is 21031230231.

It is a super-2 number, since 2×13203213012² (a number of 21 digits) contains 22 as substring.

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 (13203213011) 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, 659778 + ... + 679494.

It is an arithmetic number, because the mean of its divisors is an integer number (269150700).

Almost surely, 2^13203213012 is an apocalyptic number.

13203213012 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 13203213012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19378850400).

13203213012 is an abundant number, since it is smaller than the sum of its proper divisors (25554487788).

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

13203213012 is a wasteful number, since it uses less digits than its factorization.

13203213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19846 (or 19841 counting only the distinct ones).

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

Adding to 13203213012 its reverse (21031230231), we get a palindrome (34234443243).

The spelling of 13203213012 in words is "thirteen billion, two hundred three million, two hundred thirteen thousand, twelve".