11142223045 has 24 divisors (see below), whose sum is σ = 14252460264. Its totient is φ = 8360487936.

The previous prime is 11142223009. The next prime is 11142223061. The reversal of 11142223045 is 54032224111.

It can be written as a sum of positive squares in 12 ways, for example, as 358231329 + 10783991716 = 18927^2 + 103846^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11142223045 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410227 + ... + 436543.

It is an arithmetic number, because the mean of its divisors is an integer number (593852511).

Almost surely, 2^11142223045 is an apocalyptic number.

It is an amenable number.

11142223045 is a deficient number, since it is larger than the sum of its proper divisors (3110237219).

11142223045 is a wasteful number, since it uses less digits than its factorization.

11142223045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26649 (or 26632 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 11142223045 its reverse (54032224111), we get a palindrome (65174447156).

The spelling of 11142223045 in words is "eleven billion, one hundred forty-two million, two hundred twenty-three thousand, forty-five".