11111187345 has 16 divisors (see below), whose sum is σ = 17780822592. Its totient is φ = 5924992320.

The previous prime is 11111187317. The next prime is 11111187359. The reversal of 11111187345 is 54378111111.

It is not a de Polignac number, because 11111187345 - 2¹¹ = 11111185297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38634 + ... + 153996.

It is an arithmetic number, because the mean of its divisors is an integer number (1111301412).

Almost surely, 2^11111187345 is an apocalyptic number.

11111187345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11111187345 is a deficient number, since it is larger than the sum of its proper divisors (6669635247).

11111187345 is a wasteful number, since it uses less digits than its factorization.

11111187345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121792.

The product of its digits is 3360, while the sum is 33.

Adding to 11111187345 its reverse (54378111111), we get a palindrome (65489298456).

The spelling of 11111187345 in words is "eleven billion, one hundred eleven million, one hundred eighty-seven thousand, three hundred forty-five".