13011322340 has 12 divisors (see below), whose sum is σ = 27323776956. Its totient is φ = 5204528928.

The previous prime is 13011322327. The next prime is 13011322349. The reversal of 13011322340 is 4322311031.

It can be written as a sum of positive squares in 2 ways, for example, as 5089966336 + 7921356004 = 71344^2 + 89002^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 650566117 = 13011322340 / (1 + 3 + 0 + 1 + 1 + 3 + 2 + 2 + 3 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (13011322349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325283039 + ... + 325283078.

It is an arithmetic number, because the mean of its divisors is an integer number (2276981413).

Almost surely, 2^13011322340 is an apocalyptic number.

13011322340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13011322340 is an abundant number, since it is smaller than the sum of its proper divisors (14312454616).

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

13011322340 is a wasteful number, since it uses less digits than its factorization.

13011322340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650566126 (or 650566124 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13011322340 its reverse (4322311031), we get a palindrome (17333633371).

The spelling of 13011322340 in words is "thirteen billion, eleven million, three hundred twenty-two thousand, three hundred forty".