1131110223 has 16 divisors (see below), whose sum is σ = 1599121920. Its totient is φ = 709166016.

The previous prime is 1131110221. The next prime is 1131110231. The reversal of 1131110223 is 3220111311.

It is a happy number.

It is not a de Polignac number, because 1131110223 - 2¹ = 1131110221 is a prime.

It is a super-3 number, since 3×1131110223³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131110221) 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 15 ways as a sum of consecutive naturals, for example, 64615 + ... + 80232.

It is an arithmetic number, because the mean of its divisors is an integer number (99945120).

Almost surely, 2^1131110223 is an apocalyptic number.

1131110223 is a deficient number, since it is larger than the sum of its proper divisors (468011697).

1131110223 is a wasteful number, since it uses less digits than its factorization.

1131110223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145006.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1131110223 is about 33631.9821449762. The cubic root of 1131110223 is about 1041.9214426306.

Adding to 1131110223 its reverse (3220111311), we get a palindrome (4351221534).

The spelling of 1131110223 in words is "one billion, one hundred thirty-one million, one hundred ten thousand, two hundred twenty-three".