13011022240 has 24 divisors (see below), whose sum is σ = 30738540420. Its totient is φ = 5204408832.

The previous prime is 13011022177. The next prime is 13011022243. The reversal of 13011022240 is 4222011031.

It can be written as a sum of positive squares in 2 ways, for example, as 11960484496 + 1050537744 = 109364^2 + 32412^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (13011022243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40659285 + ... + 40659604.

Almost surely, 2^13011022240 is an apocalyptic number.

13011022240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13011022240 is an abundant number, since it is smaller than the sum of its proper divisors (17727518180).

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

13011022240 is an equidigital number, since it uses as much as digits as its factorization.

13011022240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81318904 (or 81318896 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 13011022240 its reverse (4222011031), we get a palindrome (17233033271).

The spelling of 13011022240 in words is "thirteen billion, eleven million, twenty-two thousand, two hundred forty".