11145225311 has 4 divisors (see below), whose sum is σ = 12158427624. Its totient is φ = 10132023000.

The previous prime is 11145225269. The next prime is 11145225319. The reversal of 11145225311 is 11352254111.

11145225311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11352254111 = 11 ⋅1032023101.

It is a de Polignac number, because none of the positive numbers 2^k-11145225311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145225319) 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 3 ways as a sum of consecutive naturals, for example, 506601140 + ... + 506601161.

It is an arithmetic number, because the mean of its divisors is an integer number (3039606906).

Almost surely, 2^11145225311 is an apocalyptic number.

11145225311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11145225311 is a deficient number, since it is larger than the sum of its proper divisors (1013202313).

11145225311 is a wasteful number, since it uses less digits than its factorization.

11145225311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013202312.

The product of its digits is 1200, while the sum is 26.

Adding to 11145225311 its reverse (11352254111), we get a palindrome (22497479422).

The spelling of 11145225311 in words is "eleven billion, one hundred forty-five million, two hundred twenty-five thousand, three hundred eleven".