11323123113440 has 48 divisors (see below), whose sum is σ = 26751162831120. Its totient is φ = 4529201080320.

The previous prime is 11323123113439. The next prime is 11323123113451. The reversal of 11323123113440 is 4431132132311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17304551 + ... + 17946969.

It is an arithmetic number, because the mean of its divisors is an integer number (557315892315).

Almost surely, 2^{11323123113440} is an apocalyptic number.

11323123113440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11323123113440 is an abundant number, since it is smaller than the sum of its proper divisors (15428039717680).

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

11323123113440 is a wasteful number, since it uses less digits than its factorization.

11323123113440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752595 (or 752587 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 11323123113440 its reverse (4431132132311), we get a palindrome (15754255245751).

The spelling of 11323123113440 in words is "eleven trillion, three hundred twenty-three billion, one hundred twenty-three million, one hundred thirteen thousand, four hundred forty".