1111152223 has 2 divisors, whose sum is σ = 1111152224. Its totient is φ = 1111152222.

The previous prime is 1111152221. The next prime is 1111152227. The reversal of 1111152223 is 3222511111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111152223 - 2¹ = 1111152221 is a prime.

Together with 1111152221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1111152223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111152221) 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 as a sum of consecutive naturals, namely, 555576111 + 555576112.

It is an arithmetic number, because the mean of its divisors is an integer number (555576112).

Almost surely, 2^1111152223 is an apocalyptic number.

1111152223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111152223 is an equidigital number, since it uses as much as digits as its factorization.

1111152223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120, while the sum is 19.

The square root of 1111152223 is about 33333.9500059624. The cubic root of 1111152223 is about 1035.7569429135.

Adding to 1111152223 its reverse (3222511111), we get a palindrome (4333663334).

The spelling of 1111152223 in words is "one billion, one hundred eleven million, one hundred fifty-two thousand, two hundred twenty-three".