13212311244 has 24 divisors (see below), whose sum is σ = 33631338048. Its totient is φ = 4003730640.

The previous prime is 13212311239. The next prime is 13212311249. The reversal of 13212311244 is 44211321231.

It is an interprime number because it is at equal distance from previous prime (13212311239) and next prime (13212311249).

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 (13212311249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50046502 + ... + 50046765.

It is an arithmetic number, because the mean of its divisors is an integer number (1401305752).

Almost surely, 2^13212311244 is an apocalyptic number.

It is an amenable number.

13212311244 is an abundant number, since it is smaller than the sum of its proper divisors (20419026804).

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

13212311244 is a wasteful number, since it uses less digits than its factorization.

13212311244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100093285 (or 100093283 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 13212311244 its reverse (44211321231), we get a palindrome (57423632475).

The spelling of 13212311244 in words is "thirteen billion, two hundred twelve million, three hundred eleven thousand, two hundred forty-four".