11013440312 has 48 divisors (see below), whose sum is σ = 24071006520. Its totient is φ = 4710350400.

The previous prime is 11013440311. The next prime is 11013440351. The reversal of 11013440312 is 21304431011.

It is a super-3 number, since 3×11013440312³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013440311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163862 + ... + 221082.

Almost surely, 2^11013440312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11013440312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12035503260).

11013440312 is an abundant number, since it is smaller than the sum of its proper divisors (13057566208).

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

11013440312 is a wasteful number, since it uses less digits than its factorization.

11013440312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57732 (or 57721 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11013440312 its reverse (21304431011), we get a palindrome (32317871323).

The spelling of 11013440312 in words is "eleven billion, thirteen million, four hundred forty thousand, three hundred twelve".