11313220340 has 12 divisors (see below), whose sum is σ = 23757762756. Its totient is φ = 4525288128.

The previous prime is 11313220327. The next prime is 11313220349. The reversal of 11313220340 is 4302231311.

It can be written as a sum of positive squares in 2 ways, for example, as 2355355024 + 8957865316 = 48532^2 + 94646^2 .

It is a super-2 number, since 2×11313220340² (a number of 21 digits) contains 22 as substring.

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: 565661017 = 11313220340 / (1 + 1 + 3 + 1 + 3 + 2 + 2 + 0 + 3 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313220349) 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, 282830489 + ... + 282830528.

It is an arithmetic number, because the mean of its divisors is an integer number (1979813563).

Almost surely, 2^11313220340 is an apocalyptic number.

11313220340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11313220340 is an abundant number, since it is smaller than the sum of its proper divisors (12444542416).

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

11313220340 is a wasteful number, since it uses less digits than its factorization.

11313220340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565661026 (or 565661024 counting only the distinct ones).

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

Adding to 11313220340 its reverse (4302231311), we get a palindrome (15615451651).

The spelling of 11313220340 in words is "eleven billion, three hundred thirteen million, two hundred twenty thousand, three hundred forty".