11442313212 has 72 divisors (see below), whose sum is σ = 29372171136. Its totient is φ = 3464340000.

The previous prime is 11442313189. The next prime is 11442313219. The reversal of 11442313212 is 21231324411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442313219) 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 23 ways as a sum of consecutive naturals, for example, 2104137 + ... + 2109567.

Almost surely, 2^11442313212 is an apocalyptic number.

11442313212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11442313212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14686085568).

11442313212 is an abundant number, since it is smaller than the sum of its proper divisors (17929857924).

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

11442313212 is a wasteful number, since it uses less digits than its factorization.

11442313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6911 (or 6898 counting only the distinct ones).

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

Adding to 11442313212 its reverse (21231324411), we get a palindrome (32673637623).

The spelling of 11442313212 in words is "eleven billion, four hundred forty-two million, three hundred thirteen thousand, two hundred twelve".