1111312340 has 12 divisors (see below), whose sum is σ = 2333755956. Its totient is φ = 444524928.

The previous prime is 1111312303. The next prime is 1111312343. The reversal of 1111312340 is 432131111.

It can be written as a sum of positive squares in 2 ways, for example, as 833823376 + 277488964 = 28876^2 + 16658^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111312343) 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, 27782789 + ... + 27782828.

It is an arithmetic number, because the mean of its divisors is an integer number (194479663).

Almost surely, 2^1111312340 is an apocalyptic number.

1111312340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111312340 is an abundant number, since it is smaller than the sum of its proper divisors (1222443616).

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

1111312340 is a wasteful number, since it uses less digits than its factorization.

1111312340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55565626 (or 55565624 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1111312340 is about 33336.3516300149. The cubic root of 1111312340 is about 1035.8066913715.

Adding to 1111312340 its reverse (432131111), we get a palindrome (1543443451).

The spelling of 1111312340 in words is "one billion, one hundred eleven million, three hundred twelve thousand, three hundred forty".