13212130000 has 50 divisors (see below), whose sum is σ = 31987912154. Its totient is φ = 5284848000.

The previous prime is 13212129979. The next prime is 13212130037. The reversal of 13212130000 is 3121231.

It can be written as a sum of positive squares in 5 ways, for example, as 3241708096 + 9970421904 = 56936^2 + 99852^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 650607 + ... + 670606.

Almost surely, 2^13212130000 is an apocalyptic number.

13212130000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212130000 is an abundant number, since it is smaller than the sum of its proper divisors (18775782154).

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

13212130000 is an equidigital number, since it uses as much as digits as its factorization.

13212130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321241 (or 1321220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13212130000 its reverse (3121231), we get a palindrome (13215251231).

The spelling of 13212130000 in words is "thirteen billion, two hundred twelve million, one hundred thirty thousand".