13212000018 has 96 divisors (see below), whose sum is σ = 35413614720. Its totient is φ = 3576143520.

The previous prime is 13212000017. The next prime is 13212000029. The reversal of 13212000018 is 81000021231.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13212000017) 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 47 ways as a sum of consecutive naturals, for example, 88048 + ... + 184868.

It is an arithmetic number, because the mean of its divisors is an integer number (368891820).

Almost surely, 2^13212000018 is an apocalyptic number.

13212000018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13212000018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17706807360).

13212000018 is an abundant number, since it is smaller than the sum of its proper divisors (22201614702).

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

13212000018 is a wasteful number, since it uses less digits than its factorization.

13212000018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96877 (or 96852 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13212000018 its reverse (81000021231), we get a palindrome (94212021249).

The spelling of 13212000018 in words is "thirteen billion, two hundred twelve million, eighteen", and thus it is an aban number.