13243212 has 18 divisors (see below), whose sum is σ = 33475988. Its totient is φ = 4414392.

The previous prime is 13243211. The next prime is 13243213. The reversal of 13243212 is 21234231.

It is an interprime number because it is at equal distance from previous prime (13243211) and next prime (13243213).

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13243211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183898 + ... + 183969.

Almost surely, 2^13243212 is an apocalyptic number.

13243212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13243212 is an abundant number, since it is smaller than the sum of its proper divisors (20232776).

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

13243212 is a wasteful number, since it uses less digits than its factorization.

13243212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367877 (or 367872 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 13243212 is about 3639.1224216836. The cubic root of 13243212 is about 236.5907587900.

Adding to 13243212 its reverse (21234231), we get a palindrome (34477443).

The spelling of 13243212 in words is "thirteen million, two hundred forty-three thousand, two hundred twelve".