11513422005440 has 56 divisors (see below), whose sum is σ = 27865784331312. Its totient is φ = 4529870945280.

The previous prime is 11513422005353. The next prime is 11513422005467. The reversal of 11513422005440 is 4450022431511.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 11513422005397 and 11513422005406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294893954 + ... + 294932993.

Almost surely, 2^{11513422005440} is an apocalyptic number.

11513422005440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11513422005440 is an abundant number, since it is smaller than the sum of its proper divisors (16352362325872).

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

11513422005440 is an equidigital number, since it uses as much as digits as its factorization.

11513422005440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589827025 (or 589827015 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 11513422005440 its reverse (4450022431511), we get a palindrome (15963444436951).

The spelling of 11513422005440 in words is "eleven trillion, five hundred thirteen billion, four hundred twenty-two million, five thousand, four hundred forty".