11773231228 has 24 divisors (see below), whose sum is σ = 22857125760. Its totient is φ = 5260764720.

The previous prime is 11773231219. The next prime is 11773231229. The reversal of 11773231228 is 82213237711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11773231229) 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, 2264976 + ... + 2270167.

It is an arithmetic number, because the mean of its divisors is an integer number (952380240).

Almost surely, 2^11773231228 is an apocalyptic number.

It is an amenable number.

11773231228 is a deficient number, since it is larger than the sum of its proper divisors (11083894532).

11773231228 is a wasteful number, since it uses less digits than its factorization.

11773231228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535217 (or 4535215 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

Adding to 11773231228 its reverse (82213237711), we get a palindrome (93986468939).

The spelling of 11773231228 in words is "eleven billion, seven hundred seventy-three million, two hundred thirty-one thousand, two hundred twenty-eight".