11154112345 has 8 divisors (see below), whose sum is σ = 13535327880. Its totient is φ = 8823027840.

The previous prime is 11154112337. The next prime is 11154112349. The reversal of 11154112345 is 54321145111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 778856464 + 10375255881 = 27908^2 + 101859^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11154112345 - 2³ = 11154112337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11154112349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12532266 + ... + 12533155.

It is an arithmetic number, because the mean of its divisors is an integer number (1691915985).

Almost surely, 2^11154112345 is an apocalyptic number.

It is an amenable number.

11154112345 is a deficient number, since it is larger than the sum of its proper divisors (2381215535).

11154112345 is an equidigital number, since it uses as much as digits as its factorization.

11154112345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25065515.

The product of its digits is 2400, while the sum is 28.

Adding to 11154112345 its reverse (54321145111), we get a palindrome (65475257456).

The spelling of 11154112345 in words is "eleven billion, one hundred fifty-four million, one hundred twelve thousand, three hundred forty-five".