1111345005 has 16 divisors (see below), whose sum is σ = 1796485824. Its totient is φ = 586606080.

The previous prime is 1111345003. The next prime is 1111345021. The reversal of 1111345005 is 5005431111.

It is a happy number.

It is not a de Polignac number, because 1111345005 - 2¹ = 1111345003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111345003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380451 + ... + 383360.

It is an arithmetic number, because the mean of its divisors is an integer number (112280364).

Almost surely, 2^1111345005 is an apocalyptic number.

1111345005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111345005 is a deficient number, since it is larger than the sum of its proper divisors (685140819).

1111345005 is an equidigital number, since it uses as much as digits as its factorization.

1111345005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763916.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1111345005 is about 33336.8415570522. The cubic root of 1111345005 is about 1035.8168398218.

Adding to 1111345005 its reverse (5005431111), we get a palindrome (6116776116).

The spelling of 1111345005 in words is "one billion, one hundred eleven million, three hundred forty-five thousand, five".