16311441212 has 24 divisors (see below), whose sum is σ = 31270337280. Its totient is φ = 7383264560.

The previous prime is 16311441191. The next prime is 16311441217. The reversal of 16311441212 is 21214411361.

It is a super-2 number, since 2×16311441212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16311441217) 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, 765038 + ... + 786069.

It is an arithmetic number, because the mean of its divisors is an integer number (1302930720).

Almost surely, 2^16311441212 is an apocalyptic number.

It is an amenable number.

16311441212 is a deficient number, since it is larger than the sum of its proper divisors (14958896068).

16311441212 is a wasteful number, since it uses less digits than its factorization.

16311441212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551361 (or 1551359 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

Adding to 16311441212 its reverse (21214411361), we get a palindrome (37525852573).

The spelling of 16311441212 in words is "sixteen billion, three hundred eleven million, four hundred forty-one thousand, two hundred twelve".