11213440340 has 12 divisors (see below), whose sum is σ = 23548224756. Its totient is φ = 4485376128.

The previous prime is 11213440333. The next prime is 11213440379. The reversal of 11213440340 is 4304431211.

11213440340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7369192336 + 3844248004 = 85844^2 + 62002^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280335989 + ... + 280336028.

It is an arithmetic number, because the mean of its divisors is an integer number (1962352063).

Almost surely, 2^11213440340 is an apocalyptic number.

11213440340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11213440340 is an abundant number, since it is smaller than the sum of its proper divisors (12334784416).

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

11213440340 is a wasteful number, since it uses less digits than its factorization.

11213440340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560672026 (or 560672024 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11213440340 its reverse (4304431211), we get a palindrome (15517871551).

The spelling of 11213440340 in words is "eleven billion, two hundred thirteen million, four hundred forty thousand, three hundred forty".